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Posted: 7/6/2018 2:21:34 PM EDT
[#1]
On the 16 incher, is this a lighter profile barrel than the original Glock uppers?
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Posted: 7/6/2018 9:17:58 PM EDT
[#2]
Yes it will work w Glock too, but the Glock will not work with the Colt.
The BCG pick up lug has to be a little higher to clear the feedramp on the Colt Lower. |
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Posted: 7/6/2018 9:20:12 PM EDT
[#3]
Yes, since this is a Brownells exclusive, we worked with them to provide them something that would set them apart, as they are the only ones carrying our Colt product line. The barrel is 12 oz lighter than a standard 16" 9mm barrel. We also include our proprietary Muzzle Brake too.
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Posted: 7/8/2018 11:39:56 AM EDT
[#4]
Any chance of a 45acp upper in the future?
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Posted: 7/9/2018 11:29:48 PM EDT
[#5]
Will have some 45 caliber uppers built in about 4 weeks.
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Posted: 7/14/2018 10:17:07 AM EDT
[#6]
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Posted: 7/18/2018 1:03:06 AM EDT
[#7]
Just got my 8.5" glock upper from Brownells. Using it on my SBR with a Stern mag block and an Armaspec 9mm stealth buffer (removed the bolt weight).
Everything seems to fit and cycle by hand smoothly, build quality is nice. One piece of advice for anyone trying to run a 3-lug silencer with an OD greater than 1.3" (mine is 1.375): the shoulder on the barrel is recessed about 1/4" too far inside the handguard to allow for the 3-lug setup to connect. Plenty of threads available though, so I've got a spacer on the way. Once I can get a can on it, I'll put it through it's paces. |
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Posted: 7/18/2018 7:41:52 AM EDT
[#8]
Quote HistoryQuoted:
One piece of advice for anyone trying to run a 3-lug silencer with an OD greater than 1.3" (mine is 1.375): the shoulder on the barrel is recessed about 1/4" too far inside the handguard to allow for the 3-lug setup to connect. Plenty of threads available though, so I've got a spacer on the way. |
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Posted: 7/18/2018 10:30:26 AM EDT
[#9]
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Posted: 7/18/2018 2:28:42 PM EDT
[#10]
I finally got mine together last night. Haven't shot it yet.
I used an FM products complete upper, billet lower, and their trigger. Mine is a 16" carbine, might shoot somce PCC matches with it. I used standard mil spec parts for the rest of it, needed; a safety with detent and spring, takedown pins, detents and springs, and trigger pins. I used a Gissele 7075 carbine extension and MOE furniture with a Guntec 9mm buffer and spring. The thing was dry as a bone, I lubed it up liberally with break free. The effort required to operate the charging handle seems excessive to me. The things that occur to me are, to grease the channel the charging handle rides in (oiled now), possibly try a different buffer spring as I have no idea about the Guntec spring. Also noted that the mag release and bolt release are plain, flat surfaces, not even any serrations on either one. Is that really a significant cost savings? Just looks cheap to me. |
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Posted: 7/18/2018 6:22:24 PM EDT
[#11]
We currently grease the charging handle assembly. Took a while to find the right grease. It may feel heavy to pull unless its shouldered. This may help...
maintenance and oiling If you are planning to shoot pcc, ping us if you intend to shoot reloads. [email protected] |
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Posted: 7/19/2018 1:56:54 PM EDT
[#12]
Thanks, I watched the video. I oiled everything shown in the video, plus oiled pins, trigger,etc. on the new lower.
What grease do you use? I have plenty of Aeroshell. If I shoot any PCC it will just be matches at the local range. I don't reload 9mm. As far as the recoil spring, the Guntec spring is listed as being for a 9mm. It looks different than a standard AR-15 recoil spring, chrome finish and seems to made of heavier wire. I'll take a standard recoil spring when I shoot it, and try both. |
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Posted: 7/19/2018 7:47:08 PM EDT
[#13]
Sounds good, a 6.5 oz buffer is optimal, steer clear of the 7.5 oz buffer as they are too long to give enough dwell time to reliably reset most triggers. This is due to the length, not the weight. Hit us up if you need any help w your build...
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Posted: 7/19/2018 11:08:02 PM EDT
[#14]
Thanks, sounds like I’ll need a different buffer. I have the Guntec 9mm buffer, it’s 8.2ounces. I did notice that it’s a bit longer than a standard 5.56 buffer. Hopefully I’ll get to the range tomorrow to see how she runs.
Also, I greased the rail the charging handle runs in, seems to have freed it up a little. |
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Posted: 7/20/2018 7:48:19 PM EDT
[#15]
Quote HistoryQuoted: Thanks! Something like the ILWT extended base 3-lug might work also: https://www.inleadwetrust.com/collections/flash-cones-muzzle-brakes/products/hk-style-extended-base-3-lug-suppressor-adapter But I got a spacer in today... so shooting tomorrow! |
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Posted: 7/21/2018 10:10:17 AM EDT
[#16]
The overall length of a buffer should never exceed 3.875", otherwise the bolt wont lock back. Its simple math, we keep seeing these crazy long buffers out there that absolutely ruin the reset on triggers too. A blowback 9mm needs dwell time to reset the trigger, a longer buffer ruins that, and will increase odds of burst fire.
Blowback pcc are prone to burst fire, an extra long buffer is just a bad idea for multiple reasons. We have seen that a flat wire spring mitigates a little recoil and smoothes out the cycling some. |
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Posted: 7/21/2018 10:11:43 AM EDT
[#17]
What length upper do you have? You should have real estate on the 8.5 and 16"
We make 2 style up uppers for 10.5", one is a "no-go" because the forward blast diffuser lives in the handguard. |
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Posted: 7/21/2018 10:44:39 AM EDT
[#18]
Quote HistoryQuoted:
Unfortunately, it seems like the only extended 3-lugs out there are threaded 1/2"-28, and the FM uppers are 1/2"-36... But I got a spacer in today... so shooting tomorrow! Quote HistoryQuoted:
Quoted: Thanks! Something like the ILWT extended base 3-lug might work also: https://www.inleadwetrust.com/collections/flash-cones-muzzle-brakes/products/hk-style-extended-base-3-lug-suppressor-adapter But I got a spacer in today... so shooting tomorrow! |
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Posted: 7/22/2018 10:29:30 AM EDT
[#19]
Got a chance to take it out, but not for very long. Rain cut the fun short. Managed to get a magazine out of it. Cycled just fine with the Stern mag block. The blowback action definitely has a bit of a push to it, but I think the Armaspec stealth recoil system kept it from being a sharp recoil. Accuracy was good with Blazer Brass ammo. 1/4" spacer gave just enough room for the 3-lug setup to work.
I was happy to find out that my 300 blk upper still cycled all four ways (super/sub, suppressed/unsupressed) with the 9mm buffer/spring system. I did have an H2 buffer in there, so it's not much of an increase in mass, but the springs sure are much stiffer. |
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Posted: 7/22/2018 10:41:05 AM EDT
[#20]
SWEET KIT!
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Posted: 8/3/2018 3:00:28 AM EDT
[#21]
I finally got my FMP build to the range today.
16” FMP upper FMP billet lower FMP trigger I used parts from Gisselle (buffer tube): Guntec (buffer and spring), and magpul furniture. I am using a Primary Arms red dot for now. And Magpul magazines. I did all my shooting at 25 yards, using my range bag for a rest. WWB 115 FMJ chewed up a 2 inch target sticker, I put 10rounds on the first target, I’m going to guess it was a 1.5 inch group at 25yards. Shot quickly from a poor rest, so I’m tickled with the performance. No malfunctions of any kind with the WWB. Next I tried some IMI 115 die cut hollow point. It’s not quite as accurate as the WWB, but still acceptable. That is until the second magazine when I got the first jam, failure to feed. The sharp edged hollow points were catching on the feed ramp. Other than the first few rounds, which functioned fine, I was getting about 20% jams, all the same FTF. Tried some old (price tag was $3.00) Remington “lead free”ammo. I had about 15 rounds. No malfunctions, but not very accurate either. I remember that this stuff sucked in a Steyr M9-A1 and an M&P. Last up was some Silver Bear 147 JHP, Steel case. POI was off a little compared to the 115 stuff which all shot to the same POI. The Silver Bear functioned perfectly, Group was probably 2.5 to 3 inches. I have some of the Police trade in Speer 147 gold dots from recoil gunworks. I need to try some of it, could be a nice home defense load. I wish I had thought to bring more different types of ammo, and the ETS mags. Is there any chance a Glock OEM Mag would help with the IMI hollow point ammo? When I was sweeping up the brass, I noticed that several were burnt looking, like the chamber didn’t seal and they got some blow by. This was all Winchester brass, had to be from the WWB. Paul from FMP had sent me one of their buffers and Springs, but I forgot it until I was at the range. They will be in the Gun next Trip. |
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Posted: 8/3/2018 10:54:33 AM EDT
[#22]
If you have a 7.5 ox buffer, they are problematic as it will interfere with the dwell time required for reliable reset. As far as hollow points, they can be challenging for any blow back pcc. I'm surprised about the accuracy on the wwb, its hit or miss for us, depending on the lot (made at several facilities). We have had great luck w Tula and Wolf steel cased ammo. My go to Brass is Blazer or PMC.
We prefer the Magpul Glock mags, would be interested to see what happens with the hollow points you were shooting with a Magpul Glock magazine. Thanks for the update man! |
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Posted: 8/3/2018 12:50:12 PM EDT
[#23]
Quote HistoryQuoted:
If you have a 7.5 ox buffer, they are problematic as it will interfere with the dwell time required for reliable reset. As far as hollow points, they can be challenging for any blow back pcc. I'm surprised about the accuracy on the wwb, its hit or miss for us, depending on the lot (made at several facilities). We have had great luck w Tula and Wolf steel cased ammo. My go to Brass is Blazer or PMC. We prefer the Magpul Glock mags, would be interested to see what happens with the hollow points you were shooting with a Magpul Glock magazine. Thanks for the update man! You can see from these pics that the IMI die cut ammo has a pretty jagged nose. I'm not too concerned about the FMP not feeding them. They are a relatively cheap hollow point that I bought 500 of, kind of for SHTF ammo.   
This stuff ran fine 
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Posted: 8/3/2018 4:36:21 PM EDT
[#24]
We havent shot the IWI hollow points, Ill order some and see what we come up with here. Agreed of the jagged edges though. Thanks for the feedback, we appreciate it.
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Posted: 8/4/2018 4:39:59 PM EDT
[#25]
Quote HistoryQuoted:
As far as hollow points, they can be challenging for any blow back pcc. |
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Posted: 8/4/2018 10:38:33 PM EDT
[#26]
We have found that pretty much every pcc on the market occasionally struggle with some brands of defensive rounds.
You can see from these pics that the IMI die cut ammo has a pretty jagged nose. |
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Posted: 8/9/2018 5:42:05 PM EDT
[#27]
Quote HistoryQuoted:
Will have some 45 caliber uppers built in about 4 weeks. |
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Posted: 8/9/2018 5:51:14 PM EDT
[#28]
Building them now!!!
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Posted: 8/9/2018 6:02:25 PM EDT
[#29]
I've been watching this thread as I'm interested in a 9mm pistol build.....I'm a little ways out of being able to do the build, but I'm scheming.
More to my point: I'm impressed by FM-products's responsiveness and receptiveness to customer input. It's a trait I appreciate. There are a few companies that get my biz because of their reasonable prices (not always the lowest, but in line with the market) and accessibility on this forum. Good CS can take you far and set you apart in a way that people remember well. |
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Posted: 8/9/2018 7:53:36 PM EDT
[#30]
Hit us up if you need any help w your build...
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Posted: 8/9/2018 8:04:27 PM EDT
[#31]
Quote HistoryQuoted:
I've been watching this thread as I'm interested in a 9mm pistol build.....I'm a little ways out of being able to do the build, but I'm scheming. More to my point: I'm impressed by FM-products's responsiveness and receptiveness to customer input. It's a trait I appreciate. There are a few companies that get my biz because of their reasonable prices (not always the lowest, but in line with the market) and accessibility on this forum. Good CS can take you far and set you apart in a way that people remember well. My build is a 16 incher. I will probably build another one, a pistol. Will be using FMP parts for sure. |
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Posted: 8/10/2018 10:02:08 AM EDT
[#32]
We kept getting asked for Colt stuff so we offered that, 45 is next. We will be shipping 45 uppers, barrels and bcg in about 2 weeks.
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Posted: 8/10/2018 2:33:27 PM EDT
[#33]
Just bought a FM-9mm bcg. Very tight fit on my upper.
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Posted: 8/10/2018 2:37:30 PM EDT
[#34]
Quote HistoryQuoted:
Will have some 45 caliber uppers built in about 4 weeks. |
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Posted: 8/10/2018 6:06:52 PM EDT
[#35]
Blow back
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Posted: 8/10/2018 6:07:16 PM EDT
[#36]
What lower are you running w the BCG?
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Posted: 8/10/2018 7:16:11 PM EDT
[#37]
PSA Glock lower and BCA upper.
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Posted: 8/10/2018 7:31:17 PM EDT
[#38]
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Posted: 8/10/2018 8:41:20 PM EDT
[#39]
Quote HistoryThanks! I took a little material off and polished it down. BCG is moving smoother and it's easier pulling the charging handle and doing a functions check now.
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Posted: 8/11/2018 1:54:18 PM EDT
[#40]
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Posted: 8/11/2018 3:55:17 PM EDT
[#41]
Quote HistoryQuoted:
16" Foxtrot Mike Upper Primary Weapons Systems Lower EOTech EXPS2-0 https://www.AR15.Com/media/mediaFiles/28051/IMG_0229__3_-637207.JPG |
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Posted: 8/12/2018 9:38:53 AM EDT
[#42]
Quote HistoryQuoted: What mag are you using? Any problems with them? |
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Posted: 8/12/2018 10:55:51 AM EDT
[#43]
Sick build man, thanks for the pics!
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Posted: 8/14/2018 1:35:32 PM EDT
[#44]
@FM-Products
Will your side charging uppers function with the Strike Industries Viper PDW Stock? 
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Posted: 8/14/2018 8:13:46 PM EDT
[#45]
It should work fine, do you know how heavy the buffer is? Ill dig into it, I have not laid my hands on one of these yet...
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Posted: 8/24/2018 10:42:52 PM EDT
[#46]
Quote HistoryQuoted:
2-3 months |
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Posted: 8/25/2018 2:40:11 PM EDT
[#47]
I plan on using a Stern Defense mag adapter in my Anderson lower and attaching a FM 9mm upper. I live in MA so I must use Pre-1994 Glock magazines if I want a mag over 10 rounds. Anyone know if the upper receiver will work reliably with pre-1994 Glock magazines?
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Posted: 8/25/2018 7:46:17 PM EDT
[#48]
I just bought your colt style upper and I need to get a magblock for my lower. Any suggestions on a relativity inexpensive mag block that will function well with your colt upper?
Thanks |
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Posted: 8/26/2018 10:10:14 AM EDT
[#49]
Can you tell me the difference in the magazines that are that era? I am not familiar with them...
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Posted: 8/26/2018 10:12:12 AM EDT
[#50]
I like the KAK mag block, they are priced right, and work well. There is a height adjustment, that sets the height of the magazine in the lower. Just make sure that is right, and you will be gtg, Paul
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