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- 5.56x45mm NATO, Ammunition, Rifle Ammunition
Black Hills Ammunition 5.56x45mm NATO 77 Grain Sierra Tipped MatchKing (TMK) Box of 50
- $79.00
- Rated 2.50 out of 5
- Cartridge 5.56x45mm NATO Grain Weight 77 Grains Quantity 50 Round Muzzle Velocity 2750 Feet Per Second Muzzle Energy 1293 Foot Pounds