Originally Posted by lifeguardkliff
I finally got to shoot my first build!! The piston system had some trouble cycling not sure it liked the rounds I was using or what so I shot some other factory loads and after about 2 or 3 mags it seemed to cycle fine the only other problem I had was the cheap ass sites I bought couldn't get me on target unless I was aiming at the ground 6ft in front o the target needless to say I ordered a red dot before I left the range
What piston system did you use? I would like to know which ones to avoid. I have built AR's with 3 different brands, ARES, Osprey, and TNW, and they all worked flawlessly and ate every type of ammo I could feed them, including blanks and steel case russian ammo of different brands that no one else wanted.