6-Position Carbine AR-15 Buffer Tube Assembly Kit - Mil-Spec - Black

$ 37.54

Ground Zero PrecisionOur AR-15 carbine buffer tube is precision machined on the latest CNC machinery from a 7075-T6 billet aerospace grade aluminum blank and finished with rugged matte black Mil-Spec Type III Class II anodizing. Throughout the manufacturing process tolerances are very tightly controlled so that the end product is a perfect fit with your receiver leaving zero gap between components while allowing zero play or wobble.

This Complete AR-15 Carbine Receiver Buffer Extension / Assembly comes with everything you need for your new build or for replacing your original broken/worn out parts. Just add the Mil Spec stock of your choice and you're ready to go.

The Ground Zero Precision AR-15 Carbine Buffer Tube Assembly Kit Includes:

  • 7075-T6 Carbine Buffer Tube (Mil-Spec Dimensions) - Hard Coat Anodized Black to Mil-Spec Type III Class II (MIL-A-8625 Rev. F)
  • Mil-Spec End Plate - Gun Quality Steel with Mil-Spec Phosphate Finish (MIL-DTL-16232 Rev. G)
  • Mil-Spec Castle Nut
  • Carbine AR-15 Buffer
  • Slick-Kote Carbine AR-15 Spring

 Other Detailed Specifications:

  • Precision CNC machined to fit all MIL-Spec carbine buffers and springs.
  • Precision CNC cut lower slot to accept all Mil-Spec end plates and most after-market sling mounting accessories.
  • Overall length of tube: 7.25"
  • Overall diameter of tube: 1.148"
  • Diameter of threads: 1.185"
  • Proudly made by Americans in Texas, U.S.A.

 ---This Assembly Kit Is Intended For AR-15 Carbines Only---

Recommended tools for assembly (not included):


Further Information:

This buffer extension has no numeric markings on top of buffer tube. This buffer extension is designed and manufactured to U.S. military specifications. All of the included parts in this assembly kit are made in the United States by top U.S. Manufacturers to strict U.S. Military Specifications, Grade, Dimensions and are guaranteed for excellent fit in your AR-15 carbine rifle. A commercial dimension stock will fit this buffer tube but will not fit as tightly as will one built to military dimensional specifications. Click Here to learn the difference between Mil-spec and Commercial dimension buffer tubes.