The M4E1 Builders Set delivers billet aesthetics in a forged package. These custom designed enhanced forgings are 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, Aero Precision has added several functional features to the Upper and Enhanced Lower Receivers to simplify the assembly process. Proudly Made in The USA
This item must be Shipped to a FFL Dealer. Please include your FFL Dealer contact information in the "ORDER COMMENTS" box at checkout.