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

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

$149.00

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(13 customer reviews)

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BCM® M4 Upper Receiver Assembly (w/ Laser T-Markings)
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 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.

Additional information

Weight 9.5945176587468 oz
Dimensions 8 × 4 × 2 in

13 reviews for BCM M4 Upper Receiver Assembly (w/ Laser T-Markings)

  1. Andre (verified owner) –

    Fully in spec thermal fit upper. Smooth matte finish.

  2. Matt Minor (verified owner) –

    Solid upper!

  3. Clown baby (verified owner) –

    Came with a tiny blem even though it’s a non blem. Doesn’t really matter, it’ll get used and probably spray painted eventually. Can’t go wrong with BCM uppers

  4. j.krassenstein (verified owner) –

    My favorite receivers are BCM, and these current batch BTO are perfect which I wouldn’t have expected less from BCM and BTO. As a bonus, the one I received had the BCM star forge mark, if that matters to you. It gives me the warm and fuzzies paired with my BCM lower.

  5. Khan (verified owner) –

    BCM quality. Just make sure you have a heat gun or hair dryer on hand.

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SKU: BCM4-UR-M4 Category: Brand:

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