Machined to MIL spec from 7075 T6 forgings
-Top MIL-Std 1913 Rail
-Hardcoat Anodized per MIL-A-8625F, Type III, Class 2
-For Use with M4 Barrel extensions
-Assembled Upper Receivers come with ejection port cover and forward assist installed
-Made in America on American-made machines
-Weight: .8.3oz
Additional information
| Weight | 33 oz |
|---|---|
| Dimensions | 8 × 6 × 7 in |
| Thread Pitch |
7 reviews for Centurion Arms CM4 5.56 Forged Upper Receiver
Only logged in customers who have purchased this product may leave a review.


yourabi (verified owner) –
Centurion is a great company – these are not thermal fit (FYI). If you need a tighter lock up, look into bedding.
chriskeifer86 (verified owner) –
Quality upper receiver
jn4auto (verified owner) –
Great upper receiver and great customer service from bto
Julian E. (verified owner) –
Great quality product from a great company.
cameronsdean (verified owner) –
Centurion makes great stuff, buy with confidence.