So, some time ago I got a great deal from PSA on a new Armalite M-15 Comp AR 18”. It came threaded from the factory.
Bought a RC3 and the requisite Surefire muzzle device. In my case, that was the 4 prong flash hider.
A year later, still waiting for that damn suppressor to get out of jail (contacted my congresswoman to talk to the atf).
So I have had no use for the flash hider as I shoot 100% suppressed. Suppressor works fine; barrel threading seems to be concentric enough to give me zero baffle strikes. Two suppressors shoulder up fine.
Ok, back to my plight. Bored, I go to thread the flash hider on, and it won’t go flush to the shoulder! It’s pretty close, but I see a silver of daylight peaking through. I’ll measure it tomorrow with a feeler guage, but the gap looks like the thickness of 2 pieces of paper.
Confused, I clean off any crud. Still won’t go.
I break out my calipers with the depth gage.
Flash hider: The depth from shoulder to the bottom is ~0.625”
Length of threading on the barrel (muzzle to shoulder). ~0.625” or maybe a hair over.
TBAC has thread specs that state the threading should only be 0.600” long.
Now, maybe this is why PSA was blowing these out? I need to call Armalite tomorrow about the dumb length of threading, but is my info off base?
Bought a RC3 and the requisite Surefire muzzle device. In my case, that was the 4 prong flash hider.
A year later, still waiting for that damn suppressor to get out of jail (contacted my congresswoman to talk to the atf).
So I have had no use for the flash hider as I shoot 100% suppressed. Suppressor works fine; barrel threading seems to be concentric enough to give me zero baffle strikes. Two suppressors shoulder up fine.
Ok, back to my plight. Bored, I go to thread the flash hider on, and it won’t go flush to the shoulder! It’s pretty close, but I see a silver of daylight peaking through. I’ll measure it tomorrow with a feeler guage, but the gap looks like the thickness of 2 pieces of paper.
Confused, I clean off any crud. Still won’t go.
I break out my calipers with the depth gage.
Flash hider: The depth from shoulder to the bottom is ~0.625”
Length of threading on the barrel (muzzle to shoulder). ~0.625” or maybe a hair over.
TBAC has thread specs that state the threading should only be 0.600” long.
Now, maybe this is why PSA was blowing these out? I need to call Armalite tomorrow about the dumb length of threading, but is my info off base?
