If it is dedicated suppressed, why would you need the ability to go from a “suppressed” setting to an “un-suppressed” setting like what the switchblock provides? Not to mention the cost difference and rail limitation that you run into vs something like the SYRAC…
As for the buffer/spring game, it’s a bandaid because it does nothing for the amount of gas that is coming through the gas system. The heavier buffers and springs only slow down the carrier group enough to avoid beating your gun to death…not to mention that after a while the port will erode, and you may need to step up to heavier springs and buffers…but what if you’re already at the heaviest you can go?
I personally would rather tune the gas system to run whatever buffer combo I choose the the “exact” gas pressure you want. The plus side is that the port size doesn’t matter at all when you can adjust the gas flow down with an adjustable block.
Yes. Mostly because you can tune it exactly how you want it, it is cheaper than a switchblock, and you don’t limit yourself on the length/type of rail.
SYRAC or the Wilson Combat…but like I said I only have experience with the SYRAC and don’t really know if the Wilson is even available yet since I just heard about it a couple days ago.
I currently have a standard carbine spring with standard carbine buffer, but Grant has told me that even an H3 may be better as far as recoil goes…per his experience with small ports and dedicated suppressed setups…
Also, another thing to note…and this may be getting more complicated than you wanted lol, but I’m running an LMT Enhanced carrier with standard bolt. Reason for this is that the Enhanced carrier allows you to run the gas system to an even lower pressure than with a standard carrier. I can’t tell you specifically why it allows for this, but it has something to do with a different cam angle that allows the bolt to unlock later than the standard…or something like that
As was mentioned above, the spring and buffer only slow the cyclic rate. I’m a lefty and I get a bunch of gas in my face. After a while it wears on the eyes.
Here’s a new questions fro ya- clamp on or set screw? I have now ordered a Noveske 10.5" upper so I’m assuming the barrel will be dimpled for the set screws? Would you stake the screws, I hear Lock Tite will not work at operating temperatures.
Lastly- what kind of lubricant for a direct thread on suppressor?
Hate to revive a dead thread but I can’t seem to find the answer I’m looking for. I have an 11.5 bcm that’s currently running a standard carbine spring with a spikes t2 buffer. Is this the correct setup? Only asking because I keep hearing about blue and green springco springs and such. Just curious I suppose.
I’ve been monkeying with a NIGHTMARE Sabre Defence 11.5 for the last month. I just can’t let go of this Piece of shit challenge.
Anyway I’ve tried 4 different gas port settings and found this…
.063 is pretty nice for unsuppressed shooting.
.055 is too small for unsuppressed shooting and won’t even run reliably with XM193’s ridiculous hotness.
.060 won’t lock back unsuppressed even with 5.56 ammo… but Runs like a MOFO with a Suppresser with both .223 and 5.56 ammo, and spits out brass like a rifle.
Get one. Have it cut down. That’s a dedicated gun.
LMT Enhanced Carrier is almost a necessity on a suppressor host. Because they’ll be undergassed by design.
I’d personally prefer a Colt 16.1’’ SOCOM profile barrel with an .062’’ port + A5 (5.1 oz.) buffer. That’ll give you lock back with NATO ammo, but not with .223 in my experience. Unsuppressed.
11.5’’ host + KAC QDSS-NT4 suppressor.
Mine is semi dedicated. I wanted it to run properly with a suppressor, but I still wanted it to cycle with NATO ammo.
My original guns were on cut down KAC uppers, and I had .056’’ ports on 11.1’’ guns. Originally used H2 buffers, and Sprinco blue springs. They’d cycle without the can, but wouldn’t lock back. The A5 system changed that. They’d lock back, because there seemed to be enough time for the bolt lock to engage.
Note that I never ran the suppressor hosts without the LMT Enhanced carrier because they wouldn’t cycle without it. (I had to make sure, because Grant said they wouldn’t in one of his old threads, but I wanted to see if it was repeatable. It was.)
Ammo used for the vast majority of my testing was M855, Federal Gold Medal Match, Mk. 262 clone, M193, Hornady 75 gr. TAP.
I bought a 12.5" DD barrel and had an inch taken off. Steve at Adco measured it, but I can’t remember what the port size is. Runs great suppressed, but will only cycle NATO rounds without the can. It will not cycle any 223 ammo that I’ve tried without.
Magicsalad, do you know the gas port size of a BCM 11.5" SS barrel? I’m running an A5 and an AAC 7.62 on it’s locking back with wolf steel case, XM193, etc…
Just want to know for the future, as I’m loving this barrel length.
