5.56 NATO
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BC-15 | 5.56 NATO Billet Upper Assembly | 7.5" Parkerized Contour| 1:7 Twist | 4150 Pistol Length Gas System | MLOK Split RailSpecial Price $229.95 Regular Price $264.99
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BC-15 | 5.56 NATO Billet Upper Assembly | 16" Parkerized M4 Barrel | 1:8 Twist | Carbine Length Gas System | MLOK Split RailSpecial Price $259.95 Regular Price $364.99
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BC-15 | 5.56 NATO Billet Upper | 10.5" Parkerized M4 Barrel | 1:7 Twist | Carbine Length Gas System | MLOK Split RailSpecial Price $249.95 Regular Price $349.99
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BC-15 | 5.56 NATO Billet Upper Assembly | 16" Parkerized M4 Barrel | 1:7 Twist | Carbine Length Gas System | MLOK Split RailSpecial Price $259.95 Regular Price $364.99
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BC-15 | 5.56 NATO Bolt Action Style Upper | 7.5" Parkerized Contour - 0.75 | 1:7 Twist | 4150 Pistol Length Gas System | MLOK Split RailSpecial Price $199.95 Regular Price $264.99
5.56 NATO is one of the most popular and versatile calibers in the Western world. Known for its lightweight design, low recoil, and reliable performance, the 5.56x45 NATO is widely used in both military and civilian applications, including self-defense, target shooting, and varmint hunting. Closely related to the .223 Remington, both calibers are known for having the most affordable and widely available ammunition. At Bear Creek Arsenal, you can find your ideal 5.56 rifles, pistols, uppers, barrels, and 5.56 ammo, all engineered for superior accuracy and performance at an unbeatable price!