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Posted: 12/22/2011 5:16:51 PM EDT
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Picked up one in 7.62 and 5.56.
The 7.62 will be primarily for my MaTen build. The other will jump between my other AR's including a 11.5'' SBR. I know when I was looking towards the AAC M4-2000 they offered a muzzle brake adapter that could double as a type of sacrificial baffle. Closed on the end, with a hole for the projectile of course. From my understanding this would take a good brunt of the force from the gases leaving the barrel before getting into the suppressor From what I can tell with the YHM's, they dont offer that type of brake. Should I keep the round count to a minimum if I am using it on my SBR? The last thing I want to do is tear up a $600 piece of gear. Same thing goes with the 7.62, should I worry about it if using it on the short barrel? These will be my first 2, and most certainly not the last 2. I just want to make sure I fully understand how the shorter barrels will effect them compared to a longer barrel. Im 3 days in and the wait is already killing me!! 
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Apparently I missed the brake they offer. I'll look into it. I'm a pipefitter by trade and deal with stainless and chrome a lot and understand their tolerances against petroleum products. Just not so much when I relates to the supressor world. It doesn't sound like ill be having a issue from what you guys have pointed out.
Now what about the factory threading? The supressors worst enemy is the baffle strike. Is there a way that I can assure I won't have an issue other than send it out to have it checked. However uncommon, I know it happens. There is only so much you can tell with a level and a square when you are dealing with a few thousandths of an inch. |
| I have the FSC556 YHM comp for my YHM Phantom 556. I believe it is now a discontinued item. Honestly I don't think it makes much of a difference as far as blast baffle erosion goes. Before I got the FSC556 brake I shot the suppressor quite a bit on both 10.5" and 11.5" SBRs and never noticed any wear. |
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Picked up one in 7.62 and 5.56. The 7.62 will be primarily for my MaTen build. The other will jump between my other AR's including a 11.5'' SBR. I know when I was looking towards the AAC M4-2000 they offered a muzzle brake adapter that could double as a type of sacrificial baffle. Closed on the end, with a hole for the projectile of course. From my understanding this would take a good brunt of the force from the gases leaving the barrel before getting into the suppressor From what I can tell with the YHM's, they dont offer that type of brake. Should I keep the round count to a minimum if I am using it on my SBR? The last thing I want to do is tear up a $600 piece of gear. Same thing goes with the 7.62, should I worry about it if using it on the short barrel? These will be my first 2, and most certainly not the last 2. I just want to make sure I fully understand how the shorter barrels will effect them compared to a longer barrel. Im 3 days in and the wait is already killing me!! I have their 5.56 QD can. And so far Im loving it. The 7.62 suppressor can fit on the 5.56mm mounts.. Including their 5.56mm break/mount |
| Yes––-send the barrels of the guns you plan on being host weapons for your silencers. ADCO can check them and will tell you what each needs. You may have to go down to a 10.5" if it's out and you want a concentric bore to threads. It is worth your time getting them check as a baffle strike is the last thing you want. |
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I have the 556 stainless phantom can It's built like a tank, slightly heavy and the mounts cost 68 bucks each. Equipt more 223 guns won't break the bank.. YHM cans are fairly priced for the budget minded shooter. They are great cans for the money. IMHO. That about sums up why I went with these. I was originally looking at the M4-2000 as my first one. Then I started putting together my MA-TEN build together and wanted a dedicated 7.62 can also. So I decided to spend a few hundred more and pick up both phantoms instead. I think these are going to fit my needs just fine for the time being. My stamps are quickly multiplying, so Im sure they wont be alone for long. 
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I have the 556 stainless phantom can It's built like a tank, slightly heavy and the mounts cost 68 bucks each. Equipt more 223 guns won't break the bank.. YHM cans are fairly priced for the budget minded shooter. They are great cans for the money. IMHO. That about sums up why I went with these. I was originally looking at the M4-2000 as my first one. Then I started putting together my MA-TEN build together and wanted a dedicated 7.62 can also. So I decided to spend a few hundred more and pick up both phantoms instead. I think these are going to fit my needs just fine for the time being. My stamps are quickly multiplying, so Im sure they wont be alone for long. The cool thing about the 762 QD can is that it threads on to the 556 QD mount... so you can use it on your 556 when you want! 
- Clint |
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JSE Surplus has the YHM Phantom QD Brake for $59 and the QD Flash Hider for $57. The Brake comes with 2 peel washers but I needed 3 to get mine timed appropriately.
I only wish they'd keep the 762 FHs in stock as they're good for 6.5G, 6.8, and 300blk and up to a .312 Mosin bullet. Posted Via AR15.Com Mobile |
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The Brake comes with 2 peel washers but I needed 3 to get mine timed appropriately.Posted Via AR15.Com Mobile The way I installed the mounts, using a lathe, I trim material off the rear face of the mount, then they are timed without the use of any washers. The thread is 1/2-28 for 556 cans. The pitch is 1 divided by 28 is .036 thousands for a full turn. If you need 1/4 turn more, you need to trim about .011 off the face... YHM says not to use washers, so I don't know if peel washers are solid enough not to compress and throw off the alignment. When the thread is not tightened up, there is some wobble as you pull up and push down the mount. So the real alignment is when it shoulders up against the barrel threads. YHM says you have within .005 concentricity of the muzzle threads. I use a pin mic and measure 4 sides of the threads. The last COLT barrel had .003 run out, so I didn't have to re-thread it. The mic I use looks like this to check concentricity. You can find them on ebay fairly cheap. 
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JSE Surplus has the YHM Phantom QD Brake for $59 and the QD Flash Hider for $57. The Brake comes with 2 peel washers but I needed 3 to get mine timed appropriately. Posted Via AR15.Com Mobile Please explain what it means to "time" the brake? Also how this affects the use of the suppressor on the YHM brake? |
Breaks and flash hiders have normally the bottom area with no cut out where the gases blow thru. This is so if your shooting prone, dirt doesn't fly up as you shoot the gun. Timing the break / hider is positioning the dead spot of the break / hider at the bottom.
picture of flash hider |
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Quoted:
Quoted:
The Brake comes with 2 peel washers but I needed 3 to get mine timed appropriately.Posted Via AR15.Com Mobile The way I installed the mounts, using a lathe, I trim material off the rear face of the mount, then they are timed without the use of any washers. The thread is 1/2-28 for 556 cans. The pitch is 1 divided by 28 is .036 thousands for a full turn. If you need 1/4 turn more, you need to trim about .011 off the face... YHM says not to use washers, so I don't know if peel washers are solid enough not to compress and throw off the alignment. When the thread is not tightened up, there is some wobble as you pull up and push down the mount. So the real alignment is when it shoulders up against the barrel threads. YHM says you have within .005 concentricity of the muzzle threads. I use a pin mic and measure 4 sides of the threads. The last COLT barrel had .003 run out, so I didn't have to re-thread it. The mic I use looks like this to check concentricity. You can find them on ebay fairly cheap. http://img.photobucket.com/albums/v508/500magnumnut/gun%20room/pinanvilmic.jpg I'd love to be able to time a muzzle device without using a peel washer
I'm 99.9% sure YHM's site says do not use crush washers, but peel washers are good since they ship them in the same package. I've installed enough of the Phantom Brakes to know to have a few Brownells 1/2" peels around in case the barrel's thread depth is incongruent with the FH's depth. Posted Via AR15.Com Mobile |
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