RXA 300 BLACKOUT HBAR MOD RIFLE (RXA15 300 BLACKOUT HBAR)
.300 AAC Blackout cal., carbine length gas tube, 16 in. HBAR button rifled barrel, A2 flash hider, 30 shot PMAG, 6-pos. adj. M4 stock, A2 pistol grip, forged aluminum A3 flat-top upper and Red X Arms lower receiver, M4 feed ramps, RXA free ...