<p>Includes: AR15 Stripped Upper Receiver in Magpulâ„¢ FDE Cerakote AR15 Stripped Lower Receiver in Magpulâ„¢ FDE Cerakote Upper Receiver Features: Platform: AR15 Material: Machined from 7075-T6 forged aluminum Coating: Magpulâ„¢ FDE Cerakote finish M4 Feedramps .250†takedown pin holes Accepts standard AR15/M16 components Lower Receiver Features: Platform: AR15 Material: Machined from 7075-T6 forged aluminum Coating: Magpulâ„¢ FDE Cerako”Cal Multi” Works with standard AR15 components and magazines Rear takedown pin detent hole is threaded for a 4-40 set screw</p>