Description
Yankee Hill Machine Company Model 57 AR 15 Lower Features: Designed in-house and machined from 7075-T6 aluminum billet. Features over-sized magazine well chamfers. Accepts all generations of PMags. Accepts mil-spec upper receivers. Built-in oversized machined trigger guard. Hardcoat anodized matte black finish. Lower fits and functions with your standard upper receiver. Yankee Hill Machine Billet Receiver Specifications: Precision CNC machined 7075-T6 aluminum Oversized magazine well chambers Accepts all generations of PMAGs Accepts all mil-spec upper receivers Caliber marked MULTI Hard Type III anodized Black
