FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine. 5in Barrel M16 5.56 Carbine 10.5in BB M16 5.56 Whether you're training tactically or working with wild boars on the range this FN America AR15 Barrel fits M4 feed ramps and enables consistent feeding. These Rifle Barrels by FN America resist corrosion and withstand heat greatly extending the barrel's life. The m4 style feed ramps and barrel extension on this Fn America AR15 Replacement Barrel resist consistent feeding. No matter what model of 5.56 NATO chambering chamber you choose you can be sure that this barrel will chamber reliably with each shot. Plus the bore and chamber are both chrome lined to further resist corrosion. Pick up an FN America M16 5.56 Carbine 10.5in Barrel for your rifle today to experience a reliable sturdy and long-lasting upgrade to your rifle. Specifications for FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine: Manufacturer: FN America Condition: New Package Contents: FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine The FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine is a quality addition to the FN America lineup. For more great deals on AR15 Barrels by FN America please browse our FNH USA Gun Parts page.