Uppers - no BCG

Shop for complete uppers without a BCG. Bear Creek Arsenal is now offering upper assemblies without the Bolt Carrier Group (BCG) for both AR-15 and AR-10 platforms.  These uppers consist of the upper receiver, barrel, handguard, flash hider, and gas system, but exclude the BCG and charging handle. They are available in various calibers, barrel lengths, and styles to suit different shooting applications. 


Add a new caliber and save money by reusing your existing BCG: 


  • .223 Wylde, 5.56 NATO, 300 Blackout, and 350 Legend: These calibers all use the same Bolt Carrier Group (BCG). This means you can interchangeably use a single BCG across rifles chambered in any of these calibers.
  • 7.62x39 and 12.7x42: Despite their different origins and typical use cases, these two powerful calibers use the same BCG, allowing for versatile builds and modifications.
  • 6.5 Grendel and 6mm ARC BCG: Known for their long-range shooting capabilities, both of these calibers can utilize the same BCG, ideal for precision shooters who switch between these calibers.
  • 450 Bushmaster and 458 SOCOM: Both of these heavy-caliber rounds, favored for big game hunting, use the same BCG, simplifying the needs of hunters and shooters who use these calibers.
  •  AR-10: All our AR-10 rifles use the same BCG, offering a standardized approach for those building or modifying AR-10 rifles.
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