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The M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this custom engineered design provides that challenge much more expensive billet options, we have added several functional features to the lower receiver to simplify the assembly process for the at home builder.
|Made In America?||Yes|
|Material||Machined from 7075-T6 forged aluminum|
|Select Your Finish||Anodized Black|
|Markings||"Cal Multi", "M4-" Serial Number Designation|
|Compatibility||Works with standard AR15 components and magazines|
|Other||Rear takedown pin detent hole is threaded for a 4-40 set screw. Threaded Bolt Catch Roll Pin (Included).|