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.
Material: Machined from 7075-T6 forged aluminum
Markings: "Cal Multi", "M4-" Serial Number Designation
Compatibility: Works with standard AR15 components and magazines
Weight (oz): 8.61 oz
Other: Rear takedown pin detent hole is threaded for a 4-40 set screw. Threaded Bolt Catch Roll Pin (Included).
***This product is blemished. Blemishes may include:***
- Plating inconsistencies
- Flaws in finish
Our blemished products are fully functional, they just didn't meet our high standards. They are a great product at a discounted price for someone who doesn't mind a slight imperfection. We do not accept returns on blemished products.