MA M4 Stripped Upper Receiver

MA M4 Stripped Upper Receiver

Your Price: $74.95
Out of Stock.
Part Number:MA-UPPER

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Forward Assist
Ejection Port Door

This upper is fully customizable. Add the forward and ejection port door if you want.

Forged from 7075-T6 aluminum and precision machined to Modern Armory specifications and features M4 feedramps.



  • Precision machined to Modern Armory specifications from 7075 T6 Forged aluminum
  • Meets Mil-spec Requirements with critical tooling dimensions held within ±.001”
  • Machined for use with barrels that use an M4 barrel extension
  • M4 Feedramps
  • Hard- coat anodized per Mil-A-8625F Type III Class II in a matte black finish
  • .250” takedown pin holes
  • Dry Film Lube on interior bore per Mil-Spec.
  • Accepts all standard AR15/M16 components
  • Forge marks from Brass Aluminum 

*Lifetime Guarantee covers manufacturing defects in materials and workmanship, regardless of the age of the product, but it does not cover normal wear and tear. Wear and tear is damage that naturally and inevitably occurs as a result of normal use.

ITAR: International Traffic in Arms Regulations Controlled Product
5 Stars
Matches very tight w/ M.A lower. Highly reccomend. 500rds through both upper/lower in 5.56. Tight group's(w/M.A duty grade barrel) top notch craftsmanship/customer service. Will continue to do business with Don. Do not hesitate on using these tools, you will not be disappointed
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Reviewed by:  from Traverse city. on 10/22/2019
5 Stars
Great Upper
I have purchased two of these uppers from MA, very nice quality and workmanship. Went on my Noveske lower with no slop what so ever.
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Reviewed by:  from Houston. on 8/31/2018

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