RF .300 BLACKOUT PISTOL WITH FQR RAIL
.300 AAC Blackout cal., GIO, pistol length gas system, 8 1/2 or 10 1/2 in. Melonite coated CM barrel, Mil-Std forged receivers, pistol buffer tube with or w/o SIG SB15 arm brace (disc.), 7 or 10 in. free float FQR (First-Gen Quad Rail), Pic...