5.56 Complete Uppers
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BC-15 5.56 NATO Bolt Action Style Upper Assembly, 16" Black Nitride M4 Barrel, 1:8 Twist, MLOK Split RailSpecial Price $217.95 Regular Price $289.99
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BC-15 5.56 NATO Bolt Action Style Upper Assembly, 16" Parkerized M4 Barrel, 1:8 Twist, MLOK Split RailSpecial Price $204.95 Regular Price $284.99
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BC-15 5.56 NATO Forged Complete Upper Assembly, 8.5" Parkerized Contour Barrel, 1:7 Twist, Pistol Length Gas System, 5.3" M-LOK RailSpecial Price $184.95 Regular Price $249.99
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BC-15 5.56 NATO Forged Complete Upper Assembly, 4.5" Stainless Contour Barrel, 1:7 Twist, Micropistol Length Gas System, 4" M-LOK Rail, Micro Flash HiderSpecial Price $236.95 Regular Price $329.99Out of stock
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BC-15 5.56 NATO Upper, 16" Black Nitride M4 Barrel, 1:7 Twist, Mid-Length Gas System, Talon 15" MLOK Split RailAs low as $217.95 Regular Price $304.99
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BC-15 5.56 NATO Right Side Charging Upper, 16" Black Nitride M4 Barrel, 1:7 Twist, Mid-Length Gas System, Talon MLOK Split RailAs low as $217.95 Regular Price $304.99
Shop & save on high-quality 5.56 complete uppers from Bear Creek Arsenal at an affordable price! 5.56 NATO is the perfect caliber for self-defense, plinking, and varmint hunting due to its 556 ammo availability, reliability, and low recoil. Our 5.56 uppers include everything you need to start shooting including a BCG, rear or side charging handle, upper receiver, and barrel, all compatible with mil-spec AR-15 lowers. Explore our selection of 5.56 complete uppers or discover our 5.56 barrels to customize your next build today!