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

MSRP: $129.00
Your Price: $59.95
(You save $69.05 )
(1020 reviews) Write a Review
Machined from 7075T6 Forgings
Stock Status: In Stock

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.***

1020 Reviews

  • 5
    Customer review

    Posted by anonymous on Oct 12th 2019

    Review body is empty

  • 5
    Customer review

    Posted by JOHN WIENANTS on Oct 9th 2019

    Review body is empty

  • 5
    Customer review

    Posted by Wayne Anderson on Sep 27th 2019

    Could hardly tell any scuff marks on it. Awesome Upper.

  • 5
    Customer review

    Posted by Alex Satterfield on Sep 23rd 2019

    Review body is empty

  • 5
    Customer review

    Posted by Tom Lowery on Sep 6th 2019

    Review body is empty

  • 5
    My go-to upper receiver

    Posted by Matt on Sep 3rd 2019

    These BCM uppers are an incredible value. Most of these Demo/scratch/dent uppers I’ve bought had no obvious defects; the worse I’ve received was a scuff in the hard coat that took a little effort to buff out.

  • 5
    What blemish ?

    Posted by Corey Scofield on Sep 3rd 2019

    Seriously fit and finish in these things are amazing couldn’t find any sort of blemish at all. Will buy more of these for sure.

  • 5
    Another great experience

    Posted by anonymous on Sep 3rd 2019

    Super fast shipping and great service. Still can’t figure out what made this a blemish! Not a scratch

  • 5
    Customer review

    Posted by Mitchell Davidson on Sep 3rd 2019

    Excellent upper, wish it came stamped BCM but it’s completely blank.