Got mt FRT running in my SBR. Next time out, I'll be adjusting my gas-block. It wasn't working on the FRT position, till I threw the can on it. It runs VERY fast.
I added a H3 and SPRINGCO "blue spring". It ran a hundred suppressed, like a very fast sewing machine. Fiddling with the gas, is gonna be trial and error, along with the recoil parts.

I added a H3 and SPRINGCO "blue spring". It ran a hundred suppressed, like a very fast sewing machine. Fiddling with the gas, is gonna be trial and error, along with the recoil parts.
