BCM® Upper Receiver - M4 Flat Top (M4 Feedramps) Complete (Unassembled) - DEMO/Scratched

MSRP: $129.00
Your Price: $79.95
(You save $49.05 )
Machined from 7075T6 Forgings
Stock Status:

BCM® M4 Flat Top Upper Receiver with cosmetic blemishes. Most have scratches or scuffs.
The upper comes unassembled, but complete with BCM forward assist assembly and ejection port cover door assembly.
You must assemble it. (Assembly required) (all parts, but you will have to assemble together)
THESE ARE USED/DEMO UPPER RECEIVER ASSEMBLIES. All will have several nicks, scratches, and marks on exterior finish. NO HANDPICKING.
This receiver has the M4 feedramps machined in. This is to be used with barrels that include the M4 barrel extension.

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
NOT 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
Made in the U.S.A. (of course)

This product will not include the BCM® logo laser etched on the receiver. It is marked BCM4 over the gas tube hole.

***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.***

1908 Reviews

  • 5

    Perfection paired it with a BCM SS410 Love it nice tight fit & has been running flawlessly

  • 5
    Stripped Upper

    Upper was perfect and BCM even threw in some awesome stickers. Make sure you have a heat gun as you need it to get the barrel to seat. Such a great company, everything is always quality.

  • 5
    Blem upper receiver

    Excellent quality as always with bcm! The blem is minor and barely noticeable.

  • 5
    Blem upper

    I don’t see any blemishes on these I ordered two and they are in perfect condition!

  • 5
    Stripped blem Upper

    Got it in, the tolerances were perfect, 10/10

  • 5
    Upper blem

    Just like they said other than couldn't see blem definitely heat up end with heat gun a little to install barrel nice

  • 5
    Blem upper reciever

    Fantastic buy. I could not find the blemish whatsoever, if it was there then it definitely wasn’t noticeable. I would definitely recommend this product.

  • 5
    Blemish upper

    Can't tell where the blemish is great product

  • 5
    BCM upper (blemished)

    Shipped same day as ordered. Ordered several uppers, could only find cosmetic scratch on one of them.