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Centurion Arms
Overview
The Centurion Arms CM4 5.56 Forged AR-15 Lower Receiver is a stripped lower designed to provide a solid foundation for your build. Made from billet aluminum and finished with hardcoat anodizing, this lower is built to withstand the rigors of use while maintaining a lightweight profile. With a trigger pin diameter of .154, it is compatible with a wide range of triggers, making it versatile for different configurations. This lower commonly appears in builds utilizing an intermediate gas system and chambered in 5.56 NATO.
Based on build data

Geissele Automatics Llc Ar-15 Maritime Bolt Catch Steel Black

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger

Geissele Automatics Llc Ar-15 Ultra Precision 5 Axis Trigger Guard Ddc

Luth-Ar Llc Ar-15 Modular Stock Assy Fixed Rifle Length Blk
Stock
Cmmg Ar15 Ambidextrous Safety Selector

Expo Arms Ar-15 Rifle Buffer - 5.4 Oz
BufferAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Geissele Automatics Llc Ar-15 Maritime Bolt Catch Steel Black | 2 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 2 | |
| Geissele Automatics Llc Ar-15 Ultra Precision 5 Axis Trigger Guard Ddc | 1 | |
| Luth-Ar Llc Ar-15 Modular Stock Assy Fixed Rifle Length Blk | Stock | 1 |
| Cmmg Ar15 Ambidextrous Safety Selector | 1 | |
| Expo Arms Ar-15 Rifle Buffer - 5.4 Oz | Buffer | 1 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 50% |
| Rifle | 50% |
Builds in the community that include the Centurion Arms Cm4 5.56 Forged Ar-15 Lower Receiver
| Build | Parts | Total |
|---|---|---|
![]() | 9 | $1155.03 |
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