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.

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.

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.

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.

Browse our 223 Remington 5.56 Nato Rifles on BudsGunShop.com. We offer the largest selection of Rifles and our everyday low prices making shopping easy.

With their line of ARs, Bushmaster delivers firearms that offer powerful core features without worrying about the bells and whistles. From the Vietnam-era classic design of the Bushmaster XM-15 to the modern tactical Bushmaster CARBON-15, …

These are complete ARs from industry-leading manufacturers, chambered in .223 and 5.56 NATO. Each semi-automatic AR 15 rifle (or carbine, etc.) found on this list is well-built, modular, reliable, and completely customizable. If you're looking to upgrade your AR-15 rifle, check out our selection of AR 15 parts.