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

MSRP: $149.00
Your Price: $129.00
(You save $20.00 )
(139 reviews)
SKU:
BCM4-UR-M4
BCM® M4 Upper Receiver Assembly (w/ Laser T-Markings)
Stock Status:

 

Life Saving Tools

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.

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

139 Reviews

  • 5
    Nice piece

    Still building my rifle so I haven't got to fire yet but this upper seems to be made very well and fits very well. I looked at a lot of reviews from other sights about BCM's uppers and they all said these are one of the best!

  • 5
    Customer review

    Review body is empty

  • 5
    no Markings

    It is great just wondering why there was no bcm marking on the upper receiver?

  • 5
    BCM M4 upper

    Perfect upper. Snug fit with barrel—I put the barrel in the freezer the night before and heated the upper with a hair drier. Add Shell Aero & slip together.
    Viola!

  • 5
    BCM M4 Upper

    The upper I received was an Anchor Harvey forged upper. As expected from BCM the upper was of superb quality and fit and finish. I used it on my M4A1 Block 1 clone and it looks great. Nice job BCM

  • 5
    Always what I need BCM M4 Upper

    No matter the part or accessory when I need to rebarrel or reconfigure a rifle BCM has what I need. I’ve never had a problem with P&A quality.

  • 5
    Exactly Whats Expected

    Great looking Upper receiver, fits on the PSA Lower i bought it for but it is a little wobbly.

  • 5
    Customer review

    Review body is empty

  • 5
    Customer review

    Thank you, BCM, for this magnificent item, haven't installed it yet, waiting on a barrel to arrive. This upper receiver will become a fully cloned MK12 Mod1, going old school. Thank you BCM.