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Posted: 1/3/2022 12:55:47 AM EDT
[#1]
Quote HistoryQuoted: Does anyone know if the thumb safety delete is the same on the 10 mm? It's the same on all the M&Ps. |
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Posted: 1/4/2022 4:09:28 PM EDT
[#2]
Quote HistoryQuoted: Does the .45 springs work? I know the 10mm is using the .45 frame. Yep. They use the same guide rod and spring set up on the 4.6" models. |
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Posted: 1/4/2022 11:00:31 PM EDT
[#3]
Quote HistoryQuoted: Yep. They use the same guide rod and spring set up on the 4.6" models. Quote HistoryQuoted: Quoted: Does the .45 springs work? I know the 10mm is using the .45 frame. Yep. They use the same guide rod and spring set up on the 4.6" models. I picked up an assortment of springs and guide rod for the 45acp version that Wolff sells. They do not work in my 4" 10mm. Thought the rod might just be a little long and I'd cut it down but the larrel lug side of the guide rod is different than on my 4" 10mm. Just a FYI for everyone. ***ETA*** still going to tinker with it. Before  Attached FileAfter  Attached FileSprings are still a bit long. Going to snip they a bit and see if my customer recoil spring works for the 4". ***ETA*** Took my 4" out with the heavily modified Wolff guide rod and 24lb recoil spring. Spring is prob under 24lb with the modifications. Ran some Armscor 180gr FMJ, 180gr S&B FMJ, 180gr S&B JHP, Hornady 175gr CD FlexLock and some Ammo Inc 180gr JHP. About 150-200rds total - 0 issues. Fired every time, ejected every time, cycled every time, locked back on an empty mag every time. Tired about 5rds with the factory recoil spring assembly. It definitely felt under sprung to me. Went immediately back to my modified setup. The only reasons I tried this was because I had ordered the parts and wasn't going to send the stuff back. I was able to modify the recoil rod and springs to work. I was concerned that if it was under sprung I could run into issues including my optic mount bolts shearing. When someone releases a complete recoil assembly made specifically for the 4" 10mm I'll pick that up. I definitely think the guns recoil spring is too light from the factory. |
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Posted: 1/9/2022 10:17:01 AM EDT
[#4]
If it helps, I just tried a 22 pound flat wire spring for a Glock 22 on the factory guide rod. So far (1 magazine) it seems to work well.
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Posted: 1/9/2022 10:53:45 AM EDT
[#5]
I’m still putting rounds down range with not one malfunction using Underwood ammo but I 100% agree that the gun is under sprung from the factory. The recoil and slide movement is pretty dang brutal.
SW could have definitely done a little better R&D before this pistol hit the market. I’m guessing the testing may have been done using off the shelf low power rounds. SW should have provided a couple of different spring weights so the shooter could tune the gun to their ammo selection. I definitely love the pistol and is by far my favorite 10mm I have shot/owned. |
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Posted: 1/9/2022 11:19:10 AM EDT
[#6]
Quote HistoryQuoted: If it helps, I just tried a 22 pound flat wire spring for a Glock 22 on the factory guide rod. So far (1 magazine) it seems to work well. Quote HistoryQuoted: If it helps, I just tried a 22 pound flat wire spring for a Glock 22 on the factory guide rod. So far (1 magazine) it seems to work well. Nice. I'll try one of those as well. Quoted: I’m still putting rounds down range with not one malfunction using Underwood ammo but I 100% agree that the gun is under sprung from the factory. The recoil and slide movement is pretty dang brutal. SW could have definitely done a little better R&D before this pistol hit the market. I’m guessing the testing may have been done using off the shelf low power rounds. SW should have provided a couple of different spring weights so the shooter could tune the gun to their ammo selection. I definitely love the pistol and is by far my favorite 10mm I have shot/owned. I really like the pistol as well. I was more worried about the couple of reports showing optic screws shearing. I already mounted an optic and didn't want to catch a sight to the head. Once I tried the factory recoil spring, it made more sense why that was happening. I think my heavier spring will help prevent that. |
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Posted: 1/14/2022 11:11:37 AM EDT
[#7]
Is it safe to say the issues seen thus far can be fixed by a heavier recoil spring? I been watching closely...want to pick up a 4.6" non-safety model. It seems to me the 4" models are more finicky.
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Posted: 1/14/2022 12:15:53 PM EDT
[#8]
Picked up a 4” a couple of weeks ago.
Have about 200 rds thru it without issue. I did have to have a smith use a sight pusher to bump the rear sight over to get the windage correct. Sight was extremely tight in the dovetail. I would like to replace the factory sights with a set of night sights. Has anyone seen spare mags yet? |
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Posted: 1/14/2022 8:57:52 PM EDT
[#9]
Quote HistoryQuoted: Picked up a 4” a couple of weeks ago. Have about 200 rds thru it without issue. I did have to have a smith use a sight pusher to bump the rear sight over to get the windage correct. Sight was extremely tight in the dovetail. I would like to replace the factory sights with a set of night sights. Has anyone seen spare mags yet? I saw 1 for $150.00 last week on GB. |
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Posted: 1/14/2022 9:06:25 PM EDT
[#10]
Quote HistoryQuoted: Is it safe to say the issues seen thus far can be fixed by a heavier recoil spring? I been watching closely...want to pick up a 4.6" non-safety model. It seems to me the 4" models are more finicky. In my brief experience with the M&P 10mm 4", I found that the factory spring setup worked fine for common factory 10mm that is weak. Sig 180gr FMJ and some warm handloads didn't function well with the factory spring. I disassembled the factory guide rod and put a 22 pound ISMI flat wire spring (for a Glock 17/22), and those problems are gone. I plan to test 24 pound spring... might help me find more of my brass. The other issue I had, and have mostly resolved is that the striker block was REALLY rough, and needed some sanding. One other possible issue is that I think the wide slide release is easier to bump in recoil. I'd like to find one of the older style that don't stick out so much and try that. Otherwise, smooth sailin'... |
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Posted: 1/15/2022 1:34:32 AM EDT
[#11]
Not 10mm specific, but I just got the new 9mm version. The reset is muted and muffled because of the oversized slide release on the right side of the gun.
The slide release has almost constant pressure (only slight) against the trigger bar that it's muting the reset sound. https://youtu.be/U63zEhNBlsA |
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Posted: 1/15/2022 4:33:38 PM EDT
[#12]
Quote HistoryQuoted: In my brief experience with the M&P 10mm 4", I found that the factory spring setup worked fine for common factory 10mm that is weak. Sig 180gr FMJ and some warm handloads didn't function well with the factory spring. I disassembled the factory guide rod and put a 22 pound ISMI flat wire spring (for a Glock 17/22), and those problems are gone. I plan to test 24 pound spring... might help me find more of my brass. The other issue I had, and have mostly resolved is that the striker block was REALLY rough, and needed some sanding. One other possible issue is that I think the wide slide release is easier to bump in recoil. I'd like to find one of the older style that don't stick out so much and try that. Otherwise, smooth sailin'... Thanks for the detail. |
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Posted: 1/15/2022 8:21:07 PM EDT
[#13]
Quote HistoryQuoted: Not 10mm specific, but I just got the new 9mm version. The reset is muted and muffled because of the oversized slide release on the right side of the gun. The slide release has almost constant pressure (only slight) against the trigger bar that it's muting the reset sound. https://youtu.be/U63zEhNBlsA Thanks for that. |
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Posted: 1/15/2022 8:57:39 PM EDT
[#14]
If I didn't already have a G20 that's been perfected by Boresight Solutions I'd be all over this.
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Posted: 1/16/2022 1:57:44 PM EDT
[#15]
Quote HistoryQuoted: In my brief experience with the M&P 10mm 4", I found that the factory spring setup worked fine for common factory 10mm that is weak. Sig 180gr FMJ and some warm handloads didn't function well with the factory spring. I disassembled the factory guide rod and put a 22 pound ISMI flat wire spring (for a Glock 17/22), and those problems are gone. I plan to test 24 pound spring... might help me find more of my brass. The other issue I had, and have mostly resolved is that the striker block was REALLY rough, and needed some sanding. One other possible issue is that I think the wide slide release is easier to bump in recoil. I'd like to find one of the older style that don't stick out so much and try that. Otherwise, smooth sailin'... This is the way. Purchased ISMI 22lb flat wire spring for the Glock 22 and put it on my factory M&P 4" 10mm guide rod based on this recommendation. Feels much better. Haven't shot it yet but it's better than the weak factory spring. Also have a 24lb coming. |
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Posted: 1/18/2022 12:05:43 AM EDT
[#16]
I understand it’s irrelevant for most of you but does anyone know if S&W has 10 round magazines available for the 10mm platform available yet?
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Posted: 1/21/2022 6:20:40 PM EDT
[#17]
Not as a reply to the post above about 10 rounders, but an FYI about magazines...
I was just able to tweak a 45 M&P magazine at the feed lips and run 10mm through it. Holds 14, using the 45 ACP follower. FWIW. AIM has 10. round 45 mags (used) for 10 bucks each. That's where I got them, cheap enough to experiment with. |
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Posted: 1/21/2022 10:03:15 PM EDT
[#18]
So the consensus is these are GTG with a spring upgrade? My reloads are right around 1275 fps. I do know where a 4" is locally for $599.
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Posted: 1/21/2022 11:22:25 PM EDT
[#19]
I ordered two recoil guide rod assemblies for my 4” M&P 2.0 9mms, the guide rods are very similar in length to the one in my 4” 10mm. I then ordered a 20lb and a 22 lb ISMI spring for the Glock 19 from Lone Wolf. I figured the Glock 19 barrel is roughly the same length as the 4” 10mm. I then took apart the new guide rod assemblies and put the new ISMI springs in them. I can certainly tell the increase when hand cycling the slide. I will take them out and shot them compared to the original.
I also installed Wolf XP .45 springs in my magazines. I hope all this together will work out the kinks. |
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Posted: 1/22/2022 12:06:37 AM EDT
[#20]
Finally picked up a 4.6" at PSA.
Trigger us the best factory M&P trigger I've had, but still room for improvement. Going to mount up the optic and do some polishing this weekend. What spring is everyone with a 4.6" barrel using? I don't load or have any nuclear loads but do have some warmer stuff stacked up. |
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Posted: 1/23/2022 5:50:40 PM EDT
[#21]
Recent review:
https://m.youtube.com/watch?v=RW6YvDkDVV4 |
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Posted: 1/24/2022 12:29:10 AM EDT
[#22]
Quote HistoryQuoted: I picked up an assortment of springs and guide rod for the 45acp version that Wolff sells. They do not work in my 4" 10mm. Thought the rod might just be a little long and I'd cut it down but the larrel lug side of the guide rod is different than on my 4" 10mm. Just a FYI for everyone. ***ETA*** still going to tinker with it. Before https://www.ar15.com/media/mediaFiles/170652/20220104_223921_jpg-2229345.JPG After https://www.ar15.com/media/mediaFiles/170652/20220105_101032_jpg-2229347.JPG Springs are still a bit long. Going to snip they a bit and see if my customer recoil spring works for the 4". ***ETA*** Took my 4" out with the heavily modified Wolff guide rod and 24lb recoil spring. Spring is prob under 24lb with the modifications. Ran some Armscor 180gr FMJ, 180gr S&B FMJ, 180gr S&B JHP, Hornady 175gr CD FlexLock and some Ammo Inc 180gr JHP. About 150-200rds total - 0 issues. Fired every time, ejected every time, cycled every time, locked back on an empty mag every time. Tired about 5rds with the factory recoil spring assembly. It definitely felt under sprung to me. Went immediately back to my modified setup. The only reasons I tried this was because I had ordered the parts and wasn't going to send the stuff back. I was able to modify the recoil rod and springs to work. I was concerned that if it was under sprung I could run into issues including my optic mount bolts shearing. When someone releases a complete recoil assembly made specifically for the 4" 10mm I'll pick that up. I definitely think the guns recoil spring is too light from the factory. So I'm assuming you just cut some off the barrel lug end of the 45 guide rod til it was roughly equivalent to the 4" 10mm one? Makes sense that smith and wesson would just extend that portion of it for the extra .6" of barrel for the 45. Anybody have a 4.6" 10mm and can take a pic of their guide rod? Maybe give some dimensions on it as well. Also, here's another video I found of a guy that used a 20lb SD9/SD40 spring and guide rode. Oddly enough, he had a couple failures to feed where it looks like the round just didnt get pushed into the barrel completely. I've had that several times when shooting hot handloads, no failures with factory ammo though. https://www.youtube.com/watch?v=ikRJUzZLrmE |
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Posted: 1/24/2022 1:14:10 AM EDT
[#23]
I agree with the posters saying S&W should have engineered it for full power ammo. M&P 40s are already available for people who want the watered down stuff.
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Posted: 1/24/2022 8:52:50 AM EDT
[#24]
Quote HistoryQuoted: So I'm assuming you just cut some off the barrel lug end of the 45 guide rod til it was roughly equivalent to the 4" 10mm one? Makes sense that smith and wesson would just extend that portion of it for the extra .6" of barrel for the 45. Anybody have a 4.6" 10mm and can take a pic of their guide rod? Maybe give some dimensions on it as well. Also, here's another video I found of a guy that used a 20lb SD9/SD40 spring and guide rode. Oddly enough, he had a couple failures to feed where it looks like the round just didnt get pushed into the barrel completely. I've had that several times when shooting hot handloads, no failures with factory ammo though. https://www.youtube.com/watch?v=ikRJUzZLrmE Quote HistoryQuoted: Quoted: I picked up an assortment of springs and guide rod for the 45acp version that Wolff sells. They do not work in my 4" 10mm. Thought the rod might just be a little long and I'd cut it down but the larrel lug side of the guide rod is different than on my 4" 10mm. Just a FYI for everyone. ***ETA*** still going to tinker with it. Before https://www.ar15.com/media/mediaFiles/170652/20220104_223921_jpg-2229345.JPG After https://www.ar15.com/media/mediaFiles/170652/20220105_101032_jpg-2229347.JPG Springs are still a bit long. Going to snip they a bit and see if my customer recoil spring works for the 4". ***ETA*** Took my 4" out with the heavily modified Wolff guide rod and 24lb recoil spring. Spring is prob under 24lb with the modifications. Ran some Armscor 180gr FMJ, 180gr S&B FMJ, 180gr S&B JHP, Hornady 175gr CD FlexLock and some Ammo Inc 180gr JHP. About 150-200rds total - 0 issues. Fired every time, ejected every time, cycled every time, locked back on an empty mag every time. Tired about 5rds with the factory recoil spring assembly. It definitely felt under sprung to me. Went immediately back to my modified setup. The only reasons I tried this was because I had ordered the parts and wasn't going to send the stuff back. I was able to modify the recoil rod and springs to work. I was concerned that if it was under sprung I could run into issues including my optic mount bolts shearing. When someone releases a complete recoil assembly made specifically for the 4" 10mm I'll pick that up. I definitely think the guns recoil spring is too light from the factory. So I'm assuming you just cut some off the barrel lug end of the 45 guide rod til it was roughly equivalent to the 4" 10mm one? Makes sense that smith and wesson would just extend that portion of it for the extra .6" of barrel for the 45. Anybody have a 4.6" 10mm and can take a pic of their guide rod? Maybe give some dimensions on it as well. Also, here's another video I found of a guy that used a 20lb SD9/SD40 spring and guide rode. Oddly enough, he had a couple failures to feed where it looks like the round just didnt get pushed into the barrel completely. I've had that several times when shooting hot handloads, no failures with factory ammo though. https://www.youtube.com/watch?v=ikRJUzZLrmE Yes, but I wouldn't go this route. As others have said, get a 22lb or 24lb flat wire spring for a Glock 22 and put that on your factory guide rod. I went thru all the trouble above because I had ordered it thinking it would be a direct fit. It wasn't but I decided to try to make it work seeing as how I already had it. It's not worth the effort. |
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Posted: 1/24/2022 9:08:18 AM EDT
[#25]
Quote HistoryQuoted: * * * As others have said, get a 22lb or 24lb flat wire spring for a Glock 22 and put that on your factory guide rod. Vendor source for these springs? Link? |
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Posted: 1/24/2022 9:37:59 AM EDT
[#26]
Quote HistoryQuoted: Vendor source for these springs? Link? Quote HistoryQuoted: Quoted: * * * As others have said, get a 22lb or 24lb flat wire spring for a Glock 22 and put that on your factory guide rod. Vendor source for these springs? Link? https://www.ndzperformance.com/ISMI-Glock-Gen-1-4-Recoil-Spring-24-lb-Full-Size-p/ismi-rs-24.htm |
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Posted: 1/24/2022 10:16:49 AM EDT
[#27]
Quote HistoryQuoted: Vendor source for these springs? Link? Quote HistoryQuoted: Quoted: * * * As others have said, get a 22lb or 24lb flat wire spring for a Glock 22 and put that on your factory guide rod. Vendor source for these springs? Link? Suggested springs for the 4.6" guns? Same? |
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Posted: 1/24/2022 10:20:42 AM EDT
[#28]
Quote HistoryQuoted: Suggested springs for the 4.6" guns? Same? Quote HistoryQuoted: Quoted: Quoted: * * * As others have said, get a 22lb or 24lb flat wire spring for a Glock 22 and put that on your factory guide rod. Vendor source for these springs? Link? Suggested springs for the 4.6" guns? Same? I can't say for certain, I've only tested mine, which is a 4" model. That said, the Glock 17/22 spring was about half an inch longer than the factory spring when both were released from tension. My guess is that it will work well. |
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Posted: 1/24/2022 5:28:54 PM EDT
[#29]
Quote HistoryQuote HistoryQuoted: Quoted: Quoted: * * * As others have said, get a 22lb or 24lb flat wire spring for a Glock 22 and put that on your factory guide rod. Vendor source for these springs? Link? https://www.ndzperformance.com/ISMI-Glock-Gen-1-4-Recoil-Spring-24-lb-Full-Size-p/ismi-rs-24.htm Thank you! |
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Posted: 1/24/2022 5:33:09 PM EDT
[#30]
Quote HistoryQuoted: Thank you! 
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Posted: 1/24/2022 7:35:48 PM EDT
[#31]
How many coils on the factory 4.0 spring?
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Posted: 1/24/2022 9:16:46 PM EDT
[#32]
Has anyone done a chrono test between the two barrels yet? I've looked everywhere but haven't found anything.
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Posted: 1/24/2022 9:53:52 PM EDT
[#33]
Quote HistoryQuoted: Has anyone done a chrono test between the two barrels yet? I've looked everywhere but haven't found anything. I haven’t seen any, but TFB compared the 4.61” G20 and the 3.78” G29 (0.83” difference) a few years ago and the velocities were closer than you would think. The 0.60” difference between the M&P 10mm barrel options would presumably be even closer:  https://www.thefirearmblog.com/blog/2018/10/03/g20sf-vs-g29sf-how-much-difference-does-barrel-length-make/ |
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Posted: 1/24/2022 10:13:27 PM EDT
[#34]
Quote HistoryQuoted: How many coils on the factory 4.0 spring? Factory 4" 10mm spring on left, Glockk 22lb spring installed on factory 4" guide rod on the right. Just a FYI, the guide rod on the 4" 10mm is the exact same as the guide rod on the 4" 9mm. Just different springs. I picked up a spare 4" 9mm guide rod to use with testing different spring weights.  Attached File |
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Posted: 1/24/2022 10:31:36 PM EDT
[#35]
Which spring weight do you feel is the best ?
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Posted: 1/24/2022 10:40:59 PM EDT
[#36]
Quote HistoryQuoted: Which spring weight do you feel is the best ? Not sure, haven't shot with either. Only shot with my homemade guide rod and 22lb spring and it was sufficient. I imagine the 22lb Glock 22 flate wire spring will be good enough but I'm going to try that and the 24lb. Maybe I'll get it out this weekend. I don't have any real high power loads, just various "normal" loads. Maybe I should take some 40S&W and see if either spring will cycle it in the 10mm. |
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Posted: 1/24/2022 10:54:19 PM EDT
[#37]
Quote HistoryQuoted: I haven’t seen any, but TFB compared the 4.61” G20 and the 3.78” G29 (0.83” difference) a few years ago and the velocities were closer than you would think. The 0.60” difference between the M&P 10mm barrel options would presumably be even closer: https://www.ar15.com/media/mediaFiles/284972/062EBB19-B432-4272-92E9-B57B73804CEF-2192935.jpg https://www.thefirearmblog.com/blog/2018/10/03/g20sf-vs-g29sf-how-much-difference-does-barrel-length-make/ Quote HistoryQuoted: Quoted: Has anyone done a chrono test between the two barrels yet? I've looked everywhere but haven't found anything. I haven’t seen any, but TFB compared the 4.61” G20 and the 3.78” G29 (0.83” difference) a few years ago and the velocities were closer than you would think. The 0.60” difference between the M&P 10mm barrel options would presumably be even closer: https://www.ar15.com/media/mediaFiles/284972/062EBB19-B432-4272-92E9-B57B73804CEF-2192935.jpg https://www.thefirearmblog.com/blog/2018/10/03/g20sf-vs-g29sf-how-much-difference-does-barrel-length-make/ Good info, thank you. I was figuring 30-50 fps. I believe I'll just grab the first one I can get. I'd rather have the 4.6 but whatever. |
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Posted: 1/25/2022 10:06:48 AM EDT
[#38]
Quote HistoryQuoted: Not sure, haven't shot with either. Only shot with my homemade guide rod and 22lb spring and it was sufficient. I imagine the 22lb Glock 22 flate wire spring will be good enough but I'm going to try that and the 24lb. Maybe I'll get it out this weekend. I don't have any real high power loads, just various "normal" loads. Maybe I should take some 40S&W and see if either spring will cycle it in the 10mm. Quote HistoryQuoted: Quoted: Which spring weight do you feel is the best ? Not sure, haven't shot with either. Only shot with my homemade guide rod and 22lb spring and it was sufficient. I imagine the 22lb Glock 22 flate wire spring will be good enough but I'm going to try that and the 24lb. Maybe I'll get it out this weekend. I don't have any real high power loads, just various "normal" loads. Maybe I should take some 40S&W and see if either spring will cycle it in the 10mm. I can add my tiny bit of experience here. I've tried both the 22 and 24 pound springs, and I'm sticking with the 24. Context: I am handloading, and my near max load of Blue Dot and a 180 gr XTP got me 1180 average. The brass was mostly recovered last time, and went about 20 feet to my 4 o'clock. Now let's see if the blue loctite on the RMR screws will hold. |
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Posted: 1/25/2022 10:39:58 AM EDT
[#39]
Quote HistoryQuoted: I haven’t seen any, but TFB compared the 4.61” G20 and the 3.78” G29 (0.83” difference) a few years ago and the velocities were closer than you would think. The 0.60” difference between the M&P 10mm barrel options would presumably be even closer: https://www.ar15.com/media/mediaFiles/284972/062EBB19-B432-4272-92E9-B57B73804CEF-2192935.jpg https://www.thefirearmblog.com/blog/2018/10/03/g20sf-vs-g29sf-how-much-difference-does-barrel-length-make/ Quote HistoryQuoted: Quoted: Has anyone done a chrono test between the two barrels yet? I've looked everywhere but haven't found anything. I haven’t seen any, but TFB compared the 4.61” G20 and the 3.78” G29 (0.83” difference) a few years ago and the velocities were closer than you would think. The 0.60” difference between the M&P 10mm barrel options would presumably be even closer: https://www.ar15.com/media/mediaFiles/284972/062EBB19-B432-4272-92E9-B57B73804CEF-2192935.jpg https://www.thefirearmblog.com/blog/2018/10/03/g20sf-vs-g29sf-how-much-difference-does-barrel-length-make/ Ballistics by the Inch backs this up. Looking at 10mm data across a variety of loads, you really want a 4" barrel minimum. But the difference between 4" to 5" and 5" to 6" is modest. My desire for a 4.6" is based mostly on slide mass. I wish instead of a 4.6" S&W had offered the "long slide" 5" model like they do for .40 and 9mm. |
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Posted: 1/25/2022 10:51:51 AM EDT
[#40]
Quoted: I can add my tiny bit of experience here. I've tried both the 22 and 24 pound springs, and I'm sticking with the 24. Context: I am handloading, and my near max load of Blue Dot and a 180 gr XTP got me 1180 average. The brass was mostly recovered last time, and went about 20 feet to my 4 o'clock. Now let's see if the blue loctite on the RMR screws will hold. And it's shooting well? Any feed issues? Quoted: Ballistics by the Inch backs this up. Looking at 10mm data across a variety of loads, you really want a 4" barrel minimum. But the difference between 4" to 5" and 5" to 6" is modest. My desire for a 4.6" is based mostly on slide mass. I wish instead of a 4.6" S&W had offered the "long slide" 5" model like they do for .40 and 9mm. Same here. I have two 5" 9 Pros. As soon as I buy a 4 or a 4.6 they'll be everywhere  |
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Posted: 1/25/2022 11:05:47 AM EDT
[#41]
Quote HistoryQuoted: And it's shooting well? Any feed issues? It seems to run great with the heavier springs, even using M&P 45 magazines. |
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Posted: 1/25/2022 11:10:03 AM EDT
[#42]
Quote HistoryQuoted: It seems to run great with the heavier springs, even using M&P 45 magazines. That was my main concern, if the mags could keep up with the slide. |
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Posted: 1/25/2022 11:19:37 AM EDT
[#43]
Quote HistoryQuoted: That was my main concern, if the mags could keep up with the slide. Same here. My first time shooting it with SIG 180 grain FMJ, the slide was outrunning the magazine, especially when there were only a few rounds left. Now, with the heavier springs, that doesn't happen anymore, so far. I haven't tested extensively, but I have seen instant positive results with the heavier springs. |
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Posted: 1/25/2022 11:57:26 AM EDT
[#44]
I'm assuming at some point, hopefully by the time I've found a M&P 10mm, that companies like Wolff or Galloway come out with dedicated M&P 10mm guide rods and springs.
It sounds like the next step after picking up an M&P10 is to source some heavier springs and appropriate guide rod. |
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Posted: 1/25/2022 1:59:45 PM EDT
[#45]
Quote HistoryQuoted: Factory 4" 10mm spring on left, Glockk 22lb spring installed on factory 4" guide rod on the right. Just a FYI, the guide rod on the 4" 10mm is the exact same as the guide rod on the 4" 9mm. Just different springs. I picked up a spare 4" 9mm guide rod to use with testing different spring weights. https://www.ar15.com/media/mediaFiles/170652/20220124_201118_jpg-2253475.JPG @coltc if I'm reading your post correctly, you disassembled a factory guide rod/spring assembly and installed a new spring on it? |
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Posted: 1/25/2022 2:01:23 PM EDT
[#46]
Quote HistoryQuoted: @coltc if I'm reading your post correctly, you disassembled a factory guide rod/spring assembly and installed a new spring on it? Just need a vice with soft contacts and 1/4" wrench/socket. Now if i could just find an appropriate spring for my 4.6"... |
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Posted: 1/25/2022 2:06:04 PM EDT
[#47]
Quote HistoryQuoted: Just need a vice with soft contacts and 1/4" wrench/socket. Now if i could just find an appropriate spring for my 4.6"... Quote HistoryQuoted: Quoted: @coltc if I'm reading your post correctly, you disassembled a factory guide rod/spring assembly and installed a new spring on it? Just need a vice with soft contacts and 1/4" wrench/socket. Now if i could just find an appropriate spring for my 4.6"... Or a 1/4" socket and a pair of Leathermans like I used. lol I'd be tempted to use the same spring, or at least try one for $8 off ebay. The G22 spring is actually a bit longer than the factory 10mm 4" spring but it should be perfectly functional without cutting. It may be good on the 4.6" as well. |
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Posted: 1/25/2022 2:09:59 PM EDT
[#48]
Quote HistoryQuoted: Or a 1/4" socket and a pair of Leathermans like I used. lol I'd be tempted to use the same spring, or at least try one for $8 off ebay. The G22 spring is actually a bit longer than the factory 10mm 4" spring but it should be perfectly functional without cutting. It may be good on the 4.6" as well. Quote HistoryQuoted: Quoted: Quoted: @coltc if I'm reading your post correctly, you disassembled a factory guide rod/spring assembly and installed a new spring on it? Just need a vice with soft contacts and 1/4" wrench/socket. Now if i could just find an appropriate spring for my 4.6"... Or a 1/4" socket and a pair of Leathermans like I used. lol I'd be tempted to use the same spring, or at least try one for $8 off ebay. The G22 spring is actually a bit longer than the factory 10mm 4" spring but it should be perfectly functional without cutting. It may be good on the 4.6" as well. Interesting. I just pulled a M&P40 out of my safe and sure enough, there's a hex head on one end of the assembly. For some reason, I had always assumed the factory assemblies were press fit together, and despite field stripping and cleaning M&P pistols many, many times never noticed the hex head. I learned something today
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Posted: 1/25/2022 2:19:04 PM EDT
[#49]
Well I found a 4" local for $599. I guess I'll be leaving work a little early today.
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Posted: 1/25/2022 2:37:10 PM EDT
[#50]
Quote HistoryQuoted: Well I found a 4" local for $599. I guess I'll be leaving work a little early today. Good price. Post pics! |
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