Originally Posted by
TehLlama
16" Douglas barrel, Midlength gas, Pinned LP gas block (I can't visually see any signs of a gas leak) Young MFG BCG - though it's quite solidly staked. The thought occurs to me that I had the lower with a slightly odd buffer/spring combination when I tried the other BCG, so I'll take a closer look at that, might still be the BCG.
I'm confident it's short stroking because it started failing to lock back on the last round with every magazine I've thrown at it, and while it's a pretty heavy barrel with a brake affixed, I'm not feeling the buffer reach the back of the stock, and I've had a few FTF cases where it has picked up a round from the magazine but lacked momentum to finish chambering the round. I did run the H2/Blue combo to be more confident it wasn't just outrunning the mag spring, but I'm fairly sure it's just too little input energy.
At such a low round count, with all brand new hardware, I'm not sure how anything wouldn't be an assembly issue, so I'll give it one more look over.