Surplus MK311 Mod 3 Frangible 5.56 Ammo (10 Rounds)

5.56 Mk311 Mod3 frangible ammunition was designed as a light, low penetration round used for training to minimize penetration of surfaces like walls and harder targets.

5.56mm MK311 Frangible Ammunition, better known by its ordnance code, “AA40”, is loaded with a 50-grain frangible bullet comprised of a non-toxic, copper and tungsten powder matrix in a gilding metal jacket. The frangible ammunition is designed to disintegrate into small fragments on impact with hard surfaces, minimizing over-penetration and ricochet hazards when training indoors, or shooting at steel targets. The polymer compound round produces limited splash back, which vastly decreases ricochets, making it ideal for training applications.