Question, the armalite ar10 carbine buffer tube that measures 8" uses the standard length ar buffers correct ?
I've got a pws mk216 in 308 that's been horribly over gassed with a can since day one. Ran like a top without. Shot them an email detailing my experiences and was told well that's just how our guns run. Okay. Bs answer but whatever.
Got the heaviest shorty carbine buffer I could find (heavybuffers.com) and a stiffer sprung from the same place and still no joy. All it succeeded in doing was making it kick like a mule and put even more gas in my face. Heavy buffer stock spring seemed to work best.
Fast forward several years and a few hundred rounds later and the gun begins to have problems. Skipping over rounds in the mag, lite primer strikes and it's just beating itself up.
Another email to pws detailing my experience with my initial contact with pws and my current issues with the gun and I got a completely different response from them. They were very apologetic about the first contact experience and very helpful with getting issues resolved this time. They sent me a label and I sent them the gun.
THREE MONTHS LATER! I finally get my gun back. Best I could tell all they did was change the gas block. It went from a four position to the new three. And it shot like crap.
It was always a solid .75-1 moa gun, better on occasion. Now we're deep in 2 moa territory. Started playing with the buffer/spring setups again and got it back down to about 1 moa. Still a 1:30-2:00 ejection pattern and still a pile of gas in the face suppressed. But, to their credit it function with all but one of six loads I shot. Federal premium with the berger 168 hybrid hunter was the only one that caused a malfunction. Ammo is way hot for a gasser.
Through a little more research I ordered a Tubbs flatwire spring and installed it with the xh carbine buffer. Ejection is now 2:00-2:30 and it shoots soft. Like a pws should. But it still needs just a little more.
So I'm wondering if I go to the armalite 8" carbine tube, with the slightly longer buffer, and machine my own heavy buffer and add a third weight inside if that could get me to the 3:00-3:30 ejection.
Both the xh and standard buffers in my rifle have two weights that weigh exactly the same and are identical dimensions. But the xh is made of stainless and is bigger bodied. I actually had to turn some off the od on the xh for the flatwire spring to work freely and fit inside the tube.
View attachment 7885869 If I don't go the buffer route I'm considering machining some kind of orfice to go in the gas block between the gas plug and the piston. If there's room. I've had it apart but can't remember what it had for extra space.
