• 6-position Commercial-spec Diameter Receiver Extension Tube, for commerical-spec buttstocks
• Compatible with AR15 Carbine Buffers, AR15 9mm buffers, and AR308 2.5″ Short Buffers.
• Extension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Rolled Threads
• Finished in a Matte Black Type III Class II Hard Coat Anodize
• Proudly Designed and Made in USA

Specs:
Buffer type: AR308 with AR308 2.5″ Short Buffer, AR15 with AR15 Carbine Buffer
Buffer Weight: Standard Carbine (3.0 oz)
Material: Aluminum
Weight: 4.8oz