CMMG UPPER M4 5.56/16IN SSBB/

Magtech 5.56x45mm NATO Ammo 55 Grain Full Metal Jacket Box of 50

Winchester White Box USA M193 5.56x45mm NATO Ammo 55 Grain Full Metal Jacket Box of 20

PMC X-Tac M855 5.56x45mm NATO Ammo 62 Grain Penetrator Full Metal Jacket Box of 20

PMC X-Tac M193 5.56x45mm NATO Ammo 55 Grain Full Metal Jacket Box of 20

Frontier Cartridge Military Grade 5.56x45mm NATO Ammo 55 Grain Hornady Match Jacketed Hollow Point Box of 20

Winchester M855 SS109 5.56x45mm NATO Ammo 62 Grain Penetrator Full Metal Jacket Box of 20

Federal American Eagle M193 5.56x45mm NATO Ammo 55 Grain Full Metal Jacket Box of 20