Loads of fun! - Stern Defense AR-15 10 inch Assembled Upper Receiver, 8.5 in 9mm Barrel w/MLOK Rail

Wow this thing is accurate! Hole on hole at 25 yards, and i can reach out to 100 no problem nailing 12x12 plates! I’m using a regular h2 buffer and a mean arms endo mag conversion and man is this a lot of fun! I’ve put 350 rounds through it and it hasn’t missed a beat EXCEPT when i try n run Remington umc. I’m sure it’s the way the endo mag lines it up with the barrel. Pmc and Winchester I’ve had zero jams. I tried it on a friends 9mm lower and it actually has less recoil on my 5.56 lower with no change at all except the endomag. I’m thinking it needs a binary trigger lol!