UPPER RECEIVER DETAILS:
MIL-Spec inner dimension measures at 1.000 -0.0/+0.002"
Finish - Tanodized*
-For Use with M4 Barrel extensions
-Assembled Upper Receivers come with the ejection port cover and forward assist installed
LOWER RECEIVER DETAILS:
Our MIL-Spec Centurion Arms LLC, C4 5.56 Forged Lower Receiver with a tanodized* finish
Receivers Machined from 7075-T6 Aircraft Grade Aluminum Forgings
*Tanodized items vary by coloration even within the same batch. While we will try to match tones as best as possible, they will most likely be mismatched in color in some way. Because of the light, tano finish, any defects or forging grains in the metal will be visible and present a uniqueness for each receiver. All sales are final unless in the event of warranty claims based on the functionality of the receiver, not cosmetic preference.
FFL Required Before Shipping. Please have your dealer email their license to sales@centurionarms.com and have them reference your name/order number.
No, we do NOT accept fax, as we live in the modern world, and we also do NOT accept carrier pigeon.
We recommend gunsmith installation for all of our parts. We cannot warranty items damaged by improper installation.