CM4 5.56 Forged Lower Receiver

Typically Processes/Ships within 5 days from receiving FFL Copy
(14 reviews) Write a Review

Out of stock

Out of Stock

**FFL Required Before Shipping. Please have your dealer email their license to 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. **

Centurion Arms LLC, C4 5.56 Forged Lower Receiver 7075-T6 Aircraft Grade Aluminum

Receivers Machined from Aluminum Forgings 7075-T6


M16/Auto Pocket


Receivers Hardcoat Anodized per MIL-A-8625F, Type III, Class 2


Weight: .4lbs







  • 5

    Posted by Braxton on Feb 10th 2021

    Beautiful ano , extremely tight tolerances and tight fitment. Best company out there by miles.

  • 5
    Uppers - lowers

    Posted by Luke on Jan 26th 2021

    If you know about Centurion and those that run/own it. You don’t really need to see reviews. Just go ahead buy what you want. Top notch stuff by good people. Simple.

  • 5

    Posted by Don Dobbs on Dec 3rd 2020

    Great lower

  • 5
    Outstanding fit/finish

    Posted by Jordan on Nov 25th 2020

    I was looking for a forged, mil spec lower and was told to check our Centurion Arms, and I’m glad I did. Fit between upper/lower was tight, anodizing was perfect, and all other dimensions were within spec. What more could you ask for?

  • 5
    Great lower

    Posted by John Milletics on Nov 20th 2020

    Nice stripped lower. Finish is perfect. Mated it with a Solgw upper and the fit was right whobble. Recommend to all.

  • 5

    Posted by perry clontz on Nov 18th 2020

    Top notch receiver, best lower I have ever bought. Fast shipment.

  • 5

    Posted by shookme on Sep 14th 2020

    Very nice tight, positive fit on multiple uppers.

  • 5
    CM4 5.56 Forged Lower

    Posted by Ray Duroy on Sep 11th 2020

    Great lower, fit finish. Mine was a complete lower everything perfect, enhanced mil spec trigger is great. You cannot go wrong with the product.