WARNING
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box.
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Own a piece of firearm history from the makers of the world’s most battle-proven firearms. The FN 15® Military Collector Series M4 upper receiver assembly is an authentic reproduction of the original made to FN’s and the U.S. military’s exacting specifications. A 14.7-in. chrome-lined barrel is button-broached with a 1:7 twist rate the welded compensator brings the barrel length to 16-in. Cut with a 5.56x45mm NATO chamber to mate with the Carpenter 158 steel bolt each MIL-SPEC bolt carrier is high-pressure and magnetic particle tested for enduring reliability.
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