Bootleg The Smuggler Stripped Upper/Lower Receiver Set Features The Bootleg The Smuggler receiver set is machined from 7075-T6 billet aluminum and designed to match Bootleg s own upper receiver for a tight consistent fit across the build. The MIL-SPEC hard anodized finish resists wear through demanding training schedules while keeping a clean refined look for years of service. An ambidextrous bolt release knob along with the parts needed for installation lets shooters drop the bolt quickly with either hand which matters for both duty use and competition stages. A hex head adjustable set screw lets builders dial in a custom tight fit of the rear lug to any mil-spec upper eliminating the play that loose receiver sets are known for. Hex headed threaded pins make installation and future maintenance of the bolt release knobs safer and easier than staking pins typically found on other receivers. A hex set screw also contains the rear detent spring removing the frustration of juggling a loose spring and back plate during assembly. The fully enclosed trigger guard and lightly flared magwell speed up magazine changes while keeping the controls protected during hard use. Ready to accept any mil-spec lower parts kit The Smuggler gives builders a durable ambidextrous foundation for a 5.56 / .223 Remington AR-15 for sale at GrabAGun. Bootleg The Smuggler Stripped Upper/Lower Receiver Set Specifications Manufacturer: Bootleg Model: The Smuggler Stripped Upper/Lower Receiver Set Action: Semi-Automatic Caliber: 5.56 / .223 Rem Color: Black Material: 7075 Billet Aluminum Finish: Hard Anodized Handedness: Ambidextrous Weight: 9.85 oz Available At: GrabAGun