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BCM M4 Mil-Spec Upper Receiver Assembly (w/ Laser T-Markings)

Customer Rating:

Sale Price $149.00

UPC Code: 855877004442 MPN: BCM-BCM4-UR-M4

Availability: Out of Stock

Category: Shooting


Product Features


1913 Rail for Mounting Optics and Accessories


Bravo Company


AR Rifles

Finish/Color: Black

Built to the correct Mil-Specs

(Inside diameter for barrel extension slightly undersized for a tighter fit to the barrel and a more accurate rifle. Please use a heat gun or hair dryer to warm up threaded bore of receiver if barrel extension is too tight.)

  • Precision machined to correct Mil-Specs from 7075 T6 Forgings extension, providing the user with superior strength when dropped or when mortaring malfunction clearance drills.
  • Fully assembled BCM M4 upper receiver with forward assist, and ejection port cover
  • Mil-Std 1913 Rail for mounting optics and accessories
  • Machined for use with barrels that use an M4 barrel extension
  • Laser etched T-markings for addressing the remounting of optics
  • Includes Mil-Spec Forward Assist with heat treated tool steel pawl, with press fit and pinned cap
  • Hard Coat Anodized per Mil-A-8625F, Type III, Class2
  • Dry Film Lube on interior bore per Mil-Specs
  • As with all BCM products, Made in the U.S.A.


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