RF 5.56 PISTOL WITH FGS RAIL
5.56 NATO cal., GIO, pistol or carbine (10.5 in.) length gas system, 7.5 or 10.5 in. Melonite treated CM barrel, A2 flash hider, forged Mil-Std receivers, pistol buffer tube assembly with or w/o SIG SB15 arm brace (disc.), low profile gas b...