My .22lr SBR AR upper he built is fantastic!!!!! I finally had a malfunction, but had to go outside of normal parameters to get it...I put in a full auto sear trip and anti-bounce weight, put it on a M16 lower that had a lighter hammer spring installed than a GI one and got a couple of failures to fire out of 50 full auto shots. With a full strength hammer spring, no failures to fire full auto.
Just wanted to say thank you for the free ak furniture,this guy was even nice enough to bring it to pensacola on the way to work and drop it off,it made my day now I can move forward with an idea I have thanks again.