The TacFire AR-15 6-Position Mil-Spec Buffer Tube Kit (TacFire part no. MAR047-B) gives builders everything needed to finish out an AR-15 stock assembly in one box. The kit is built around a mil-spec 6-position buffer tube, matched with a 3-ounce buffer and a carbine-length buffer spring for reliable cycling. A dual loop sling adapter end plate adds two-point sling attachment options at the rear of the receiver, and a castle nut rounds out the kit for a complete, ready-to-install stock foundation.

Key Specifications

• Includes one mil-spec 6-position buffer tube for standard adjustable stock compatibility.
• Comes with a 3-ounce buffer matched to carbine-length operation.
• Includes a carbine-length buffer spring for reliable bolt carrier cycling.
• Features a dual loop sling adapter end plate for two-point sling attachment.
• Includes a castle nut to complete the buffer tube installation.
• Weighs approximately 0.64 lb as a complete kit.

Frequently Asked Questions

What is included in this kit? It includes a mil-spec 6-position buffer tube, a 3-ounce buffer, a carbine-length buffer spring, a dual loop sling adapter end plate, and a castle nut.

Does the end plate support sling attachment? Yes, the dual loop end plate provides two attachment points for a two-point sling.

Is this a mil-spec or commercial buffer tube? It is a mil-spec diameter 6-position buffer tube.

Buy the TacFire AR-15 6-Position Mil-Spec Buffer Tube Kit

Finish your AR-15 stock build with one complete, ready-to-install kit. Shop more build parts from TacFire in our AR buffer system selection, with fast, direct shipping from our Lubbock, Texas gun shop.