CMMG Mil-Spec AR-15 Carbine Buffer Tube Kit Aluminum Black

The CMMG Mil-Spec AR-15 Carbine Buffer Tube Kit is a receiver extension for AR-15 lowers, used to build a carbine lower group with a stock. It is made from aluminum with a black hard coat anodized finish and follows Mil-Spec diameter dimensions, so it attaches to any AR-15 receiver that accepts a Mil-Spec receiver extension.

The kit includes a 6-position receiver extension, a carbine buffer assembly and a carbine action spring. Combine it with your choice of lower parts kit and butt stock to complete the lower group.

• Platform: AR-15
• Fits: Mil-Spec receiver extension
• Material: Aluminum
• Finish: Black hard coat anodized
• Diameter: Mil-Spec
• Stock positions: 6
• Includes: Receiver extension, carbine buffer assembly, carbine action spring