FInd All Product Handguns Filtered (1) Filters Reset all× Heckler & Koch / H&K× 16.5"× 4.4500× 4.8"× 7"× SearchSearch× In Stock Out of stock(1) Model MR556 A4(1) Category AR Pistols(1) Manufacturer— Heckler & Koch / H&K American Tactical / ATI(1) Beretta(4) Daniel Defense(4) Diamondback Firearms(5) FN America / FN Herstal(6) GForce Arms(1) Heckler & Koch / H&K(1) Q LLC(2) Smith & Wesson / S&W(2) Tisas(2) Action Semi-Auto(1) Caliber .223 REM/5.56 NATO(1) Barrel Length— 16.5" 11"(3) 13"(2) 16.5"(1) 3.13"(1) 3.27"(4) 3.32"(4) 3.58"(1) 3.85"(8) 3.94"(2) 4.09"(20) 4.25"(2) 4.41"(2) 4.45"(6) 4.46"(1) 4.5"(9) 4.53"(2) 4.57"(1) 4.7"(10) 4.86"(2) 5"(3) 5.09"(1) 5.19"(2) 5.2"(3) 5.5"(1) 5.51"(1) 5.83"(1) 5.87"(4) 6.02"(1) 6.09"(1) Show (1) Cancel Showing the single result Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low
