UTG Pro Mil-Spec 6-Position Extension Tube Kit - Black
Detail Information:
• 6-position Mil-spec Diameter Receiver Extension Tube for AR-15 Rifles
• Extension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable Thread Engagement with Lower Receiver
• Underwent the Tightest Tolerance Controls for a Secure Fit and Function with Various Collapsible Stocks
• Finished in a Matte Black Type III Class II Hard Coat Anodize
• Includes Mil-spec 6-position Extension Tube, Recoil Buffer, Buffer Spring, Receiver End Plate, and Castle Nut
• Proudly Designed and Made in USA