Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades Anodized Bronze. These AR15 Lower Parts by Guntec USA are enhanced with an anodized finish and include essential parts like the Ambidextrous Safety a Trigger guard extended takedown pins and an extended bolt catch release. The Guntec USA AR15 Enhanced Lower Parts Upgrade Kit even comes with Anti-Rotation Pins to prevent your bolt catch from getting stuck making this a must-have for shooters who want to take down their rifles with ease. Pick up the Guntec USA AR-15 Enhanced Lower Receiver Parts Kit w/ Upgrades before your next outing for the best possible additions to your rifle. Specifications for Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades: Manufacturer: Guntec USA Finish: Anodized Fabric/Material: Aluminum/Steel Caliber: 5.56mm Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Weight: 5.9 oz Features of Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades Anodized Finish on Upgraded Parts - Ambi Safety Trigger Guard Extended Takedown Pin Set Mag Catch Lever And Extended Button Anti-Rotation Pins Extended Bolt Catch Release Package Contents: Guntec USA AR-15 Enhanced Lower Parts Kit w/ Upgrades Guntec USA LPK-ENH-BRZ: AR-15 Enhanced Lower Parts Kit w/ Upgrades Anodized Bronze