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

MSRP: $129.00
Your Price: $89.95
(You save $39.05 )
(1322 reviews) Write a Review
Maximum Purchase:
10 units
Machined from 7075T6 Forgings
Stock Status:

Out of 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.***

1322 Reviews

  • 5
    Scratched upper reciever???

    Posted by Corbin on Sep 13th 2020

    What scratches??? Looked it over from every angle, couldn't find a single blemish. Arrived in immaculate condition. Getting this upper at half price is absolutely the way to go!

  • 5
    2nd Time....Perfection twice.

    Posted by Steven Jenkins on Sep 11th 2020

    These blem uppers don't have blems, are high quality. If you have access to a heat gun for assembly, I highly recommend these uppers.

  • 5
    Blend upper

    Posted by Ethan on Sep 10th 2020

    Awesome deal! Can barely see a blemish. It did come bone dry so you might have to put some oil on it, but for half the price I’ll take this any day!

  • 5
    Its exactly what it says

    Posted by Brandon on Sep 10th 2020

    No frills, no hidden bs. It means it when it says blemished, i have a large scratch running down the left side of the receiver. But, you cant beat a $60 BCM upper. Would recommend for the savings

  • 5
    Blemished Stripped Upper Receiver

    Posted by Steve O'Dell on Sep 9th 2020

    I purchased two of these, shipping was quick and well packaged. Both have minor cosmetic finish imperfections, neither of any consequence. The forward assist and dust cover parts are good quality. All in all these are an excellent value..

  • 5
    Not A Scratch!

    Posted by Daniel on Sep 8th 2020

    For the life of me I can't find any blemishes! GREAT deal! Wish I had bought more than one!

  • 5
    I trust BCM

    Posted by Robert on Sep 7th 2020

    I can always count on BCM to deliver a quality product. I couldn't find a blemish, but at that price I'll take their word on it.

  • 5
    BCM® Upper Receiver - M4 Flat Top (M4 Feedramps) Complete (Unassembled) - DEMO/Scratched

    Posted by John Seagrave on Sep 7th 2020

    Bravo Company comes through again (as usual!) - just received the "Demo/scratched M4 upper" and can't find a thing wrong with it! Probably one of the best forged uppers available at an incredible price but they disappear almost as quickly as BCM makes them available so you better be quick. Thanks (again) BCM!

  • 5
    BCM A4 flat top receiver

    Posted by Eric R. on Sep 7th 2020

    I bought 3. All just had a small ding or a wear spot on the rail. Touched up with aluminum black and good to go. Good deal!