I have two 350 Legend uppers and both feed perfectly. The first was a 16" Ballistic Advantage Hanson performance Carbine barrel, M16 bolt carrier, with Aero Prec XL upper and Duramags. The second was a 16" Pro 2A Tactical complete upper with Duramags. The key is wide ramps on the barrel extension and Duramags. Might have to adjust recoil spring rate and gas, but I have not. I really like the BA barrel with the "Big Bore" ramps in the barrel extension...seems to have the least resistance to the loaded cartridge moving up the ramp... So far, 7 hogs and one deer with the BA.
Last edited by TxJW; 03/15/24.
