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 | Mid Length Gas System | MLOK Split RailSpecial Price $219.95 Regular Price $309.99
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BC-15 | 5.56 NATO Bolt Action Style Upper Assembly | 16" Parkerized M4 Barrel | 1:8 Twist | Mid Length Gas System | MLOK Split RailSpecial Price $229.95 Regular Price $319.99
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BC-15 | 5.56 NATO Upper | 16" Parkerized M4 Barrel | 1:7 Twist | Mid-Length Gas System | Talon 15” MLOK Split Rail | with BCG & Charging HandleAs low as $184.99 Regular Price $314.99
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BC-15 | 5.56 NATO Complete Upper Assembly | 7" Parkerized Barrel | 1:7 Twist | Pistol Length Gas System | MLOK Split RailSpecial Price $199.95 Regular Price $279.99
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BC-15 | 5.56 NATO Complete Upper Assembly | 14.5" Parkerized M4 Barrel| 1:7 Twist | Carbine Length Gas System | Standard HandguardSpecial Price $239.95 Regular Price $334.99
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BC-15 | 5.56 NATO Complete Upper Assembly | 11.5" Parkerized M4 Barrel| 1:7 Twist | Carbine Length Gas System | Standard HandguardSpecial Price $239.95 Regular Price $334.99
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BC-15 | 5.56 NATO Left Side Charging Right Eject Complete Upper | 20" Black Nitride Heavy Barrel | Rifle Gas System | 1:7 Twist | MLOK Split RailSpecial Price $288.95 Regular Price $404.99
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BC-15 | 5.56 NATO Left Side Charging Right Eject Complete Upper | 10.5" Parkerized M4 Barrel | Carbine Gas System | 1:7 Twist | MLOK Split RailSpecial Price $234.95 Regular Price $329.99
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BC-15 | 5.56 NATO Left Side Charging Right Eject Complete Upper | 16" Parkerized Barrel | Mid-Length Gas System | 1:7 Twist | MLOK Split RailSpecial Price $244.95 Regular Price $344.99
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BC-15 | 5.56 NATO Left Side Charging Right Eject Complete Upper | 4.5" Parkerized Heavy Barrel | Pistol Gas System | 1:7 Twist | MLOK Split RailSpecial Price $269.95 Regular Price $379.99
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BC-15 | 5.56 NATO Left Side Charging Right Eject Complete Upper | 16" Parkerized M4 Barrel | Carbine Gas System | 1:8 Twist | MLOK Split RailSpecial Price $244.95 Regular Price $344.99
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!