TacFire AR-15 6-Position Mil-Spec Buffer Tube Kit MAR047A

Description

Whether you're building a lower from scratch or bringing an old rifle back to life, the TacFire AR-15 6-Position Mil-Spec Buffer Tube Kit hands you the core receiver extension parts in one shot. It's built to accept any standard mil-spec collapsible stock, so you can dial in your length of pull across six positions and get the rifle sitting right for your build. The tube runs true mil-spec dimensions, which keeps your stock snug on the tube instead of wobbling around like the fatter commercial-diameter tubes tend to do.

What Comes in the TacFire Buffer Tube Kit

This is a complete extension setup, not just a bare tube. Inside you get the mil-spec 6-position buffer tube with a foam insert, a 3 oz carbine buffer, a carbine-length buffer spring, a standard end plate, and a castle nut. That covers the full recoil hardware chain, so once you have your stock and lower parts sorted, you've got what you need to finish the back half of the rifle.

Where the TacFire Mil-Spec Extension Fits Best

The kit is aimed at 223/5.56 AR-15 pattern rifles and works great as a straight replacement for a damaged or worn stock system, or as a conversion when you're moving a fixed-stock or A2 setup over to a collapsible carbine stock. Mil-spec is the more common standard out there and gives you the widest range of stock options to bolt on later, which is why most builders lean this direction.

A quick heads-up on the build itself: you'll want an armorer's wrench to snug the castle nut down, and it's smart to keep the buffer retainer and detent under control while you thread the tube in, since that little spring likes to launch when you're not looking. Toss a dab of anti-seize on the threads and you'll thank yourself later. It's a straightforward job that most folks can knock out at the bench in a few minutes with the right tools on hand.