This Assurance M model comes chambered in 5.56 with a 16″, CMV lightweight barrel (carbine length underlying gas block). RRA CAR lightweight quad-rail with flip-up sights attached.
Rock River Arms AR1910 LAR-15M Assurance-M Carbine 5.56x45mm NATO 16″ 30+1, Black, RRA Operator Stock & Hogue Grip, Flip-Up Sights, Carrying Case
