Duty Ready 45P/53P/53PS/55P/57P Description
5.56 NATO, 7.62 NATO, or .300 AAC Blackout cal., micro gas system, 4 1/2 (disc. 2020), 5, or 5 1/2 in. Mil-Spec CMV or stainless steel (53P or 57P model) Premium barrel, KVP linear comp, ALG (disc.) or VT Mil-Spec trigger, Magpul (disc.) or polymer (new 2020) trigger guard, optic ready, Shockwave (disc.) or SB Tactical SBA3 (new 2020) pistol brace, 5 or 5 1/2 in. U-LOK (disc. 2020) or M-LOK (new 2020) billet rail system, Nitride M16 BCG, with (57P model) or w/o enhanced bolt pistol buffer tube, QD endplate, black finish.