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Posted: 2/29/2024 8:42:40 PM EDT
I put a Kurz adaptor on my K to shorten it up even more. It seems to fit with the YHM standard length flash hiders (and the shorter ones). Are there any adverse effects of running the FH deeper into the can with the Kurz adaptor? I was wondering if it would accelerate wear or not be as effective at noise reduction?
Thanks. |
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PA, USA
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Posted: 2/29/2024 9:17:14 PM EDT
[Last Edit: mak0]
[#1]
In theory moving the muzzle closer to the blast baffle is going to increase wear. You can always use a brake instead of a flash hider if it concerns you.
ETA: and decreasing the internal volume of the blast baffle is going to reduce performance. I believe YHM claims something like a 2db loss in noise reduction going with the kurz kit instead of the standard mount. |
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Posted: 2/29/2024 9:22:04 PM EDT
[#2]
Quote HistoryOriginally Posted By mak0: In theory moving the muzzle closer to the blast baffle is going to increase wear. You can always use a brake instead of a flash hider if it concerns you. ETA: and decreasing the internal volume of the blast baffle is going to reduce performance. I believe YHM claims something like a 2db loss in noise reduction going with the kurz kit instead of the standard mount. Thanks. I'll probably just stick with the standard adaptor than and deal with the extra length. |
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Posted: 2/29/2024 9:37:35 PM EDT
[#3]
What sort of gun?
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Posted: 2/29/2024 9:37:39 PM EDT
[#4]
Send it they are pretty tough cans
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KY, USA
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Posted: 2/29/2024 9:45:04 PM EDT
[#5]
It will definitely increase sound and be harder on the blast baffle. Worth it in my opinion.
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Posted: 2/29/2024 9:48:38 PM EDT
[#6]
Quote HistoryOriginally Posted By 1168RGR: What sort of gun? 10.5" & 11.5" AR & Bren 2. |
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CO, USA
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Posted: 2/29/2024 11:31:26 PM EDT
[#7]
Have you thought about switching to the sRx family?
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Posted: 2/29/2024 11:57:03 PM EDT
[#8]
Quote HistoryOriginally Posted By Bakke1: Have you thought about switching to the sRx family? Yeah, but I’m already invested in the standard platform. |
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Posted: 3/1/2024 10:32:10 AM EDT
[#9]
I emailed YHM. They said their Phantom is too long for the chamber of the Turbo K w/Kurz. Which is weird, as it fits with my regular length Phantoms. They also said there shouldn't be any noticeable sound difference between using the Kurz or regular adaptor. So, I'll just used the Kurz with my shorty Phantoms I have on a few firearms.
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MT, USA
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Posted: 3/1/2024 11:25:45 AM EDT
[#10]
I am running the sRx flash hider and adapter on my Turbo K on a 12.5. Per YHM's drawing I only have .131" of clearance from end of fh to blast baffle. I haven't noticed anything erosion yet, but I am pretty low round count. Running the same setup with a Turbo T2 on a 10.3. That has an even lower round count though.
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Posted: 3/1/2024 2:28:10 PM EDT
[Last Edit: YoungPatriot]
[#11]
The Turbo K calls out for the Kurz mount IMHO. It’s so compact to begin with and not really a can designed for chasing decibels but rather taking the edge off. Just go with a mini-QD brake or FH and call it a day. You’d have to shoot so much through it to notice a meaningful wear difference you could buy several cans based on ammo spend before worrying about it.
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VA, USA
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Posted: 3/1/2024 4:03:46 PM EDT
[#12]
Quote HistoryOriginally Posted By dump1567: I emailed YHM. They said their Phantom is too long for the chamber of the Turbo K w/Kurz. Which is weird, as it fits with my regular length Phantoms. They also said there shouldn't be any noticeable sound difference between using the Kurz or regular adaptor. So, I'll just used the Kurz with my shorty Phantoms I have on a few firearms. So just so I'm clear, the longer flash hider physically fits inside the can with the Kurz adapter, just YHM doesn't recommend it? |
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Posted: 3/1/2024 4:17:52 PM EDT
[#13]
I’m new to a YHM TK as well and went plan B for my TK. That phantom ratchet system is just too heavy.
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WI, USA
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Posted: 3/1/2024 4:21:19 PM EDT
[#14]
Quote HistoryOriginally Posted By GimmeLibertee: So just so I'm clear, the longer flash hider physically fits inside the can with the Kurz adapter, just YHM doesn't recommend it? |
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Posted: 3/1/2024 5:06:19 PM EDT
[Last Edit: dump1567]
[#15]
Quote HistoryOriginally Posted By GimmeLibertee: So just so I'm clear, the longer flash hider physically fits inside the can with the Kurz adapter, just YHM doesn't recommend it? Dimensionally, they say it doesn’t fit. But mine do? Unless somehow I bent in the innards of the can when I installed it? Doesn’t seem to be the case though. And I kind of measured the depth & length of the FH prior to installation. Email received: Hello, Thank you for your email. The TK has a blast chamber depth of 1.877”. Using a KURZ and a 4302 series Flash Hider will give you a depth of 1.910” which is a no go. With the KURZ and the 4302 Muzzle Break will give you a depth of 1.710”, good to go. We find that there is no noticeable difference between the two. Please let us know if you have any other questions. Thank you, Kevin Therrien - Customer Service Representative Yankee Hill Machine Co., Inc. 412 Main Street Easthampton, MA 01027 877-892-6533 Ext. 120 www.yhm.net M-F 7:30-4 EST |
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Posted: 3/19/2024 3:08:59 PM EDT
[#16]
I read that the Kurtz adapter will decrease suppression by 2 dB over the standard phantom and collar. It makes me wonder if using a direct thread configuration is better or worse than the phantom and collar setup.
Anyone know? |
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Posted: 3/19/2024 3:47:41 PM EDT
[#17]
Quote HistoryOriginally Posted By Fooboy: I read that the Kurtz adapter will decrease suppression by 2 dB over the standard phantom and collar. It makes me wonder if using a direct thread configuration is better or worse than the phantom and collar setup. Anyone know? I’ve used mine DT on a 14”, Plan A on 11.5”-14.5”, and Gate-Lok on a 12.5”, and with Sordins on, it sounds about the same when accounting for barrel length. Very unscientific. I’d just use it with whatever mount fits your needs. Mine’ll go back to Plan A when my M4SD-L gets out of purgatory, and parked back on a 12.5”. |
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TX, USA
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Posted: 3/19/2024 4:04:00 PM EDT
[#18]
You guys running the Kurz should consider going to the sRx system. Shorter, lighter, and lower profile overall. It’s 10/10.
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Posted: 3/19/2024 4:22:11 PM EDT
[#19]
Quote HistoryOriginally Posted By TactiCoolBro: You guys running the Kurz should consider going to the sRx system. Shorter, lighter, and lower profile overall. It’s 10/10. Does that require an sRx hub adapter? |
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TX, USA
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Posted: 3/19/2024 4:37:40 PM EDT
[#20]
Quote HistoryOriginally Posted By dump1567: Does that require an sRx hub adapter? Yes, because it’s taper lock. (Very superior to the click locking style of the kurz IMO.) |
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Posted: 3/19/2024 4:50:03 PM EDT
[#21]
Quote HistoryOriginally Posted By TactiCoolBro: Yes, because it’s taper lock. (Very superior to the click locking style of the kurz IMO.) Thanks. |
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USA
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Posted: 3/20/2024 7:05:50 AM EDT
[#22]
Quote HistoryOriginally Posted By dump1567: Thanks. Quote HistoryOriginally Posted By dump1567: Originally Posted By TactiCoolBro: Yes, because it’s taper lock. (Very superior to the click locking style of the kurz IMO.) Thanks. Original YHM mounts are still taper lock. They have a secondary ratcheting lock. The Srx has no secondary lock |
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OH, USA
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Posted: 3/20/2024 8:01:44 AM EDT
[Last Edit: Millennial]
[#23]
There are Plan A/B adapters that add almost no length to the Turbo K.
It comes down to whether you like Rearden or Q mounts versus Griffin Mounts. I like the Plan B ones a little more because the sealing taper is in front of the threads and the threads stay sparkling clean basically forever. I have original style Turbo K (serial #18) that's used a Plan B on it since I got it in the beginning and it's been running running full auto and it's been rock solid. Never come loose and wear has not been a problem. Honestly, I only use a mount system at all just to put a sacrificial brake in there... because I use the silencer dedicated to a machinegun, I don't really care about the mount otherwise. In fact, the gun is tuned so it won't even cycle without the silencer. If I were doing it all over again with modern products today, I'd use an AAC direct-thread brake; gives the simplicity and compactness of DT with a built in brake baffle for HUB suppressors: 
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TX, USA
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Posted: 3/20/2024 8:22:04 AM EDT
[Last Edit: TactiCoolBro]
[#24]
Quote HistoryOriginally Posted By zpduff: Original YHM mounts are still taper lock. They have a secondary ratcheting lock. The Srx has no secondary lock The ratcheting system is incredibly heavy, very bulky - and 100% unnecessary if the taper is made correctly. The sRx must have a different angle or something, because it hasn’t come loose on me ever. Only been a couple range trips, but zero issues. Hand tight and it stays put, yet backs right off with no problem when you need it to. The problems with the ratcheting system have been pretty well documented on this forum and several others. YHM should consider doing away with the ratcheting system IMO. Or at a minimum stop including it with their suppressors. It’s just inferior in every way to their sRx system. The sRx is shorter than Kurz, lighter than Kurz, and aesthetically looks way better than the Kurz. Phantom (IMO) is completely ridiculous and it kind of blows my mind that anyone actually uses it between how much length it adds and how heavy it is. |
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MS, USA
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Posted: 3/20/2024 8:23:31 AM EDT
[Last Edit: Glocked]
[#25]
Quote HistoryOriginally Posted By Millennial: There are Plan A/B adapters that add almost no length to the Turbo K. It comes down to whether you like Rearden or Q mounts versus Griffin Mounts. I like the Plan B ones a little more because the sealing taper is in front of the threads and the threads stay sparkling clean basically forever. I have original style Turbo K (serial #18) that's used a Plan B on it since I got it in the beginning and it's been running running full auto and it's been rock solid. Never come loose and wear has not been a problem. Honestly, I only use a mount system at all just to put a sacrificial brake in there... because I use the silencer dedicated to a machinegun, I don't really care about the mount otherwise. In fact, the gun is tuned so it won't even cycle without the silencer. If I were doing it all over again with modern products today, I'd use an AAC direct-thread brake; gives the simplicity and compactness of DT with a built in brake baffle for HUB suppressors: https://cdn11.bigcommerce.com/s-50c7cl/images/stencil/608x608/products/5913/28387/154371__26242.1681248583.jpg?c=2 I love the new AAC direct thread adapter. It does a great job at keeping compact cans, compact and light. I love the Kurz mounts too, especially since I could just cut off all my old style YHM brakes to use it on compact cans. However, the Kurz and brake does add about 2.5-3 ounces over the weight of the AAC DTA. AAC DTA top YHM Kurz middle YHM Phantom bottom.  |
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VA, USA
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Posted: 3/26/2024 9:22:23 PM EDT
[#26]
Quote HistoryOriginally Posted By TactiCoolBro: The problems with the ratcheting system have been pretty well documented on this forum and several others. YHM should consider doing away with the ratcheting system IMO. Or at a minimum stop including it with their suppressors. It’s just inferior in every way to their sRx system. The sRx is shorter than Kurz, lighter than Kurz, and aesthetically looks way better than the Kurz. Phantom (IMO) is completely ridiculous and it kind of blows my mind that anyone actually uses it between how much length it adds and how heavy it is. What problems with the ratcheting system are you referring to? I’ve been using it for many years and haven’t noticed any issues. Sure it’s not the lightest or prettiest, but it’s rugged and reliable, in my experience. |
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Posted: 3/27/2024 12:53:59 PM EDT
[#27]
The legacy YHM mounting system has a bunch of threads that a lot of others don't carry. They have them for the M1A and M14x1LH for example that others don't offer. It's too bad they discontinued the 9/16x24LH for the FAL, had to use a Rugged mount for that.
They offer 2 choices for the SRX system, 1/2x28 and 5/8x24. Yes those are the most common, but anyone with a decent collection will find that severely lacking. |
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Posted: 3/27/2024 12:59:31 PM EDT
[Last Edit: FoxValleyTacDriver]
[#28]
Quote HistoryOriginally Posted By dump1567: Dimensionally, they say it doesn’t fit. But mine do? Unless somehow I bent in the innards of the can when I installed it? Doesn’t seem to be the case though. And I kind of measured the depth & length of the FH prior to installation. Email received: Hello, Thank you for your email. The TK has a blast chamber depth of 1.877”. Using a KURZ and a 4302 series Flash Hider will give you a depth of 1.910” which is a no go. With the KURZ and the 4302 Muzzle Break will give you a depth of 1.710”, good to go. We find that there is no noticeable difference between the two. Please let us know if you have any other questions. Thank you, Kevin Therrien - Customer Service Representative Yankee Hill Machine Co., Inc. 412 Main Street Easthampton, MA 01027 877-892-6533 Ext. 120 www.yhm.net M-F 7:30-4 EST Well someone's wrong. I use 4302 flash hiders exclusively and my k cans fit on all of them with the adaptor. |
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Posted: 3/27/2024 1:00:12 PM EDT
[#29]
Quote HistoryOriginally Posted By TactiCoolBro: Yes, because it’s taper lock. (Very superior to the click locking style of the kurz IMO.) The og mount is a taper too, the clicks are just a secondary retention. |
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Posted: 3/27/2024 1:02:15 PM EDT
[Last Edit: FoxValleyTacDriver]
[#30]
Quote HistoryOriginally Posted By GimmeLibertee: What problems with the ratcheting system are you referring to? I’ve been using it for many years and haven’t noticed any issues. Sure it’s not the lightest or prettiest, but it’s rugged and reliable, in my experience. Sometimes the tooth can align in a way that prevents a full lock on the taper. Causing the taper to unlock after a few shots. In my experience it is about 1 in 5 mounts have this issue. You can modify the collar by disassembling it and lightly filing the inside of it, allowing another degree of rotation. I have two that had the issue that I've successfully modified. |
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USA
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Posted: 3/27/2024 9:02:04 PM EDT
[#31]
Seems like a lot of work for me to take all my Kurz mounts off to swap to SrX. Plus the cost. I have kurz on like 6 rifles for two suppressors. Thats $720 msrp. I’d rather another can or ammo.
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TX, USA
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Posted: 3/27/2024 9:36:58 PM EDT
[#32]
Quote HistoryOriginally Posted By smokinghole: Seems like a lot of work for me to take all my Kurz mounts off to swap to SrX. Plus the cost. I have kurz on like 6 rifles for two suppressors. Thats $720 msrp. I’d rather another can or ammo. You can sell them easily. Sold my Kurz HUB adapters and phantom muzzle devices in literally 2 days. Well worth a small loss to upgrade to the far superior sRx system. |
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MT, USA
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Posted: 3/28/2024 1:46:23 AM EDT
[#33]
Quote HistoryOriginally Posted By TactiCoolBro: You can sell them easily. Sold my Kurz HUB adapters and phantom muzzle devices in literally 2 days. Well worth a small loss to upgrade to the far superior sRx system. |
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Posted: 4/12/2024 11:30:15 AM EDT
[#34]
Finally ordered some SRX mounts. Modern Warriors have these on sale right now as part of their 35% off sale.
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Posted: 4/12/2024 11:35:59 AM EDT
[#35]
I had to chop one baffle off my Phantom brake to fit the Kurz adapter with my Turbo K and Turbo 3.
Overall I'm happy with the Kurz system as it was by far the cheapest option to reduce the overall length in my case. |
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Posted: 4/13/2024 12:02:17 PM EDT
[#36]
Quote HistoryOriginally Posted By JBecker_72: I had to chop one baffle off my Phantom brake to fit the Kurz adapter with my Turbo K and Turbo 3. Overall I'm happy with the Kurz system as it was by far the cheapest option to reduce the overall length in my case. Which mount can take more abuse? Standard Phantom qd or Srx? |
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Posted: 4/13/2024 12:33:20 PM EDT
[#37]
Quote HistoryOriginally Posted By Strikefirst: Which mount can take more abuse? Standard Phantom qd or Srx? |
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TX, USA
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Posted: 4/13/2024 9:05:54 PM EDT
[#38]
Quote HistoryOriginally Posted By Strikefirst: Which mount can take more abuse? Standard Phantom qd or Srx? What kind of abuse? Generally speaking I’d expect something to break or go wrong with the phantom or Kurz mount just due to the fact that it’s got a lot of extra mechanical parts to it that the sRx doesn’t have or need. |
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TX, USA
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Posted: 4/13/2024 9:06:59 PM EDT
[#39]
Quote HistoryOriginally Posted By JBecker_72: Not sure. The Phantom QD system is pretty idiot proof and repeatable in my experience. I like having the locking teeth to insure the can stays on. Great thing with the sRx is there’s zero need for the locking teeth. Tighten by hand and it will never come off until you want it to. |
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Posted: 4/13/2024 9:13:54 PM EDT
[#40]
Quote HistoryOriginally Posted By TactiCoolBro: Great thing with the sRx is there's zero need for the locking teeth. Tighten by hand and it will never come off until you want it to. Quote HistoryOriginally Posted By TactiCoolBro: Originally Posted By JBecker_72: Not sure. The Phantom QD system is pretty idiot proof and repeatable in my experience. I like having the locking teeth to insure the can stays on. Great thing with the sRx is there's zero need for the locking teeth. Tighten by hand and it will never come off until you want it to. |
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OH, USA
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Posted: 4/13/2024 9:47:53 PM EDT
[#41]
Originally Posted By dump1567: I put a Kurz adaptor on my K to shorten it up even more. It seems to fit with the YHM standard length flash hiders (and the shorter ones). Are there any adverse effects of running the FH deeper into the can with the Kurz adaptor? I was wondering if it would accelerate wear or not be as effective at noise reduction? Thanks. |
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TX, USA
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Posted: 4/14/2024 9:30:55 AM EDT
[#42]
Quote HistoryOriginally Posted By JBecker_72: Both are taper mounts. The Phantom has the added security of a locking system. More of a liability and an annoyance than an added security IMO. |
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Posted: 4/14/2024 10:03:29 AM EDT
[#43]
Quote HistoryOriginally Posted By dump1567: Finally ordered some SRX mounts. Modern Warriors have these on sale right now as part of their 35% off sale. |
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Posted: 4/14/2024 10:21:42 AM EDT
[#44]
Quote HistoryOriginally Posted By TactiCoolBro: More of a liability and an annoyance than an added security IMO. |
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Posted: 4/14/2024 10:55:33 AM EDT
[#45]
Quote HistoryOriginally Posted By yamahawarrior89: The legacy YHM mounting system has a bunch of threads that a lot of others don't carry. They have them for the M1A and M14x1LH for example that others don't offer. It's too bad they discontinued the 9/16x24LH for the FAL, had to use a Rugged mount for that. They offer 2 choices for the SRX system, 1/2x28 and 5/8x24. Yes those are the most common, but anyone with a decent collection will find that severely lacking. The SRX system has a long way to go to get on par with Plan A/B. I’d choose either of those before I went SRX. |
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Posted: 4/14/2024 10:58:30 AM EDT
[#46]
Quote HistoryOriginally Posted By JBecker_72: How? It's a lock ring, spring, and circlip. Not exactly a complex device. Quote HistoryOriginally Posted By JBecker_72: Originally Posted By TactiCoolBro: More of a liability and an annoyance than an added security IMO. It’s certainly more complex than omitting those items altogether. It adds weight and length for dubious gains. Modern taper mount systems are about as foolproof as you can get. I’ve got tens of thousands of rounds through cans with Plan A across dozens of hosts and I have not experienced one singular occurrence of a can backing off or loosening up. |
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MT, USA
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Posted: 4/14/2024 10:09:03 PM EDT
[#47]
Quote HistoryOriginally Posted By WUPHF: The SRX system has a long way to go to get on par with Plan A/B. I'd choose either of those before I went SRX. |
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Posted: 4/14/2024 10:28:02 PM EDT
[#48]
Quote HistoryOriginally Posted By spyderboy03: How do you figure? It is very similar. Quote HistoryOriginally Posted By spyderboy03: Originally Posted By WUPHF: The SRX system has a long way to go to get on par with Plan A/B. I'd choose either of those before I went SRX. In versatility. As the post I quoted stated, SRX muzzle devices are only available in two thread patterns currently. That severely limits what platforms it can be used on. |
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MT, USA
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Posted: 4/15/2024 1:28:24 PM EDT
[#49]
Quote HistoryOriginally Posted By WUPHF: In versatility. As the post I quoted stated, SRX muzzle devices are only available in two thread patterns currently. That severely limits what platforms it can be used on. 
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