UTG PRO AR-15 Mil-Spec 6-Position Buffer Tube – FDE Carbine

Description

This is the receiver extension that ties your carbine build together. The UTG PRO Mil-Spec 6-Position Buffer Tube is CNC machined from 6061-T6 aircraft-grade aluminum and finished in Flat Dark Earth Cerakote, so it holds up to wear and corrosion while matching an FDE stock and grip. It runs the true mil-spec 1.148-inch diameter, which is the standard nearly every aftermarket collapsible stock is built around these days, from Magpul to B5 to Mission First.

Where the UTG PRO Receiver Extension Fits Your Build

The six positions give you an adjustable length of pull, so the same rifle works whether you are running a plate carrier or shooting in short sleeves at the range. The threads are precisely rolled rather than cut, which means solid, durable engagement when you thread it into your lower receiver and torque down the castle nut. It accepts standard carbine buffers and springs, and folks have noted it plays nicely with recoil mitigation springs too.

What Comes With the FDE Carbine Buffer Tube

Worth calling out up front: this listing is for the buffer tube by itself. You will still need a carbine buffer, buffer spring, castle nut, and receiver end plate to complete the assembly. If you already have those parts on hand or are swapping out an existing tube to get the FDE finish, this is exactly what you want. If you are starting from scratch, UTG also offers a full kit version.

Built to a Standard That Actually Matters

Leapers has been making shooting and outdoor gear for over two decades, and the UTG PRO line is designed and made in the USA. The tight tolerance control here is the whole point of a mil-spec tube: it keeps your stock snug and quiet instead of loose and rattling. It is also backed by the UTG PRO lifetime warranty against defects in material and workmanship.