5.56 NATO AR15 rifles for sale online or in-store at Sportsman's Warehouse. Shop a full selection of 5.56 NATO caliber AR15 rifles from top firearms manufacturers.

Get an AR-15 rifle that's optics-ready to attach a scope and has a longer barrel for increased bullet velocity. And if you just want something that looks cool at the range, our AR-15s for sale feature everything from tactical black to patriotic decals.

Get a new 5.56 NATO AR 15 Rifle at Primary Arms at the best prices with the best customer service in the industry. We've got all your favorite AR15 rifle brands.

Complete rifles are equipped wih a cold hammer-forged alloy barrel with 1:8" twist rifling that provides exceptional accuracy with bullets from 35 to 77 grains. M4 feed ramps and 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition.

Browse our 223 Remington 5.56 Nato Rifles on BudsGunShop.com. Use our advanced product search tools to find exactly what you are looking for!

Our collection of AR-15s for sale feature high-quality parts and accessories designed for performance. Shop AR-15 rifles at Sportsman's Outdoor Superstore.

Our catalog of 5.56mm AR15 rifles. 5.56 NATO is a common and easy-to-shoot cartridge is ideal for defense, training, and small-medium game hunting.

Our collection of AR-15s for sale feature high-quality parts and accessories designed for performance. Shop AR-15 rifles at Sportsman's Outdoor Superstore.

This 5.56 AR-15 includes a standard handguard and M4 front sight, a forged upper receiver, a BCA AR15 Bolt Carrier Group, Flash Hider, rear charging handle, and mil-spec forged AR-15 multicaliber lower.

Find the best 5.56 rifles for your needs online at Bear Creek Arsenal! 556 is the perfect all-round caliber, beloved for its widespread ammo availability, ease of use, and low recoil. We offer our 556 rifles in many different lengths, barrel finishes, and flutes.