The PSA M4A1 lower receiver — rollmarked “PROPERTY OF US GOVERNMENT” and “CAL. 5.56MM M4A1” — is the foundation of any serious M4A1 clone build. Manufactured by Palmetto State Armory on forged 7075-T6 aluminum, this stripped lower captures the rollmark aesthetic of issued SOCOM rifles without the expense of a Colt CAGE-coded receiver.
The markings are laser-engraved in the correct font and placement to replicate the Colt M4A1 Block II pattern used by US military units. Machining is MIL-SPEC, with proper fit for standard AR-15/M4 lower parts kits, buffer tubes, and upper receivers. Type III hardcoat anodizing in matte black provides the authentic service finish.
Ideal for clone builders pursuing an FBI HRT M4A1, CAG, or DEVGRU Block II aesthetic on a realistic budget. Pair it with a Colt SOCOM profile barrel, Geissele rail, and issued-pattern stock to complete the look. Ships stripped and ready for your LPK and build sequence.
Please note: rollmarks are for clone/display accuracy only. This is a commercial firearm sold to civilians.
Order yours today and lay down the correct foundation for your M4A1 clone.
