5.56 NATO
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BC-15 | 5.56 NATO Bolt Action Style Upper | 16" Black Nitride M4 Barrel | 1:7 Twist | Talon 15” MLOK Split Rail | with BCG & Charging HandleAs low as $199.95 Regular Price $304.99
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BC-15 | 5.56 NATO Bolt Action Style Upper | 16" Parkerized M4 Barrel | 1:8 Twist | Talon MLOK Split Rail | with BCG & Charging HandleAs low as $229.95 Regular Price $319.99
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BC-15 | 5.56 NATO Bolt Action Style Upper | 16" Parkerized M4 Barrel | 1:7 Twist | Talon 15” MLOK Split Rail | with BCG & Charging HandleAs low as $229.95 Regular Price $319.99
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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 Rail | with BCG & Charging HandleAs low as $202.95 Regular Price $344.99
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BC-15 | 5.56 NATO Upper | 16” Parkerized M4 Barrel | 1:8 Twist | Carbine Length Gas System | Talon MLOK Split Rail | with BCG & Charging HandleAs low as $199.95 Regular Price $314.99
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BC-15 | 5.56 NATO Upper | 11.5" Parkerized M4 Barrel | 1:7 Twist | Carbine Length Gas System | 9.5" MLOK Split Rail| with BCG & Charging HandleAs low as $189.95 Regular Price $309.99
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BC-15 | 5.56 NATO Upper | 14.5" Parkerized M4 Barrel | 1:7 Twist | Carbine Length Gas System | MLOK Split Rail| with BCG & Charging HandleAs low as $219.95 Regular Price $309.99
![BC-15 | 5.56 NATO Tungste](https://www.bearcreekarsenal.com/media/amasty/amlabel/flag_07b000.svg "BC-15 | 5.56 NATO Tungsten Cerakote Upper | 16" Black Nitride M4 Barrel | 1:7 Twist | Mid-Length Gas System | Talon 15” MLOK Split Rail | with BCG & Charging Handle")
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!