Luth-AR A2 Rifle Buffer Tube 6061-T6 Aluminum Black BS-09

Description

Building a classic fixed-stock AR or dropping a rifle-length buffer setup into a target gun? The Luth-AR A2 Rifle Buffer Tube is the receiver extension that ties the whole thing together. It's cut from 6061-T6 aluminum and finished in hardcoat anodized black, so it shrugs off corrosion and the everyday wear that comes with a rifle that actually gets used. One tube covers a lot of ground too, since it threads into both .223/5.56 AR-15 lowers and .308/7.62 AR-10 lowers. There's no difference between a .223 and .308 A2 tube, so you're getting the same part either way.

Where the Luth-AR A2 Tube Fits In Your Build

This is a rifle-length extension made for A2 fixed buttstocks, and it also plays nice with Luth-AR's own MBA-1 and MBA-2 stocks. A rifle-length tube runs longer than a carbine receiver extension, which is why it pairs with a longer rifle buffer and rifle spring rather than the carbine parts you'd find under a collapsible stock. Folks running 20-inch and other longer barreled builds tend to like the rifle system for the smoother recoil impulse it gives you at the bench.

What to Pair With the BS-09 Buffer Tube

Worth knowing up front: this is the tube by itself. It does not come with the buffer, spring, A2 spacer, or the stock screw, so you'll want those on hand before install day. If you're swapping out a carbine setup, plan on a rifle buffer and rifle spring to match the extra length inside the tube. Install is straightforward on a fixed-stock lower, and most folks torque the extension in the 35 to 40 ft-lb range once the buffer retainer and spring are seated.

Bottom line, it's a no-nonsense, made-in-America piece that does exactly what a good A2 tube should: give your fixed-stock build a solid, corrosion-resistant foundation without any fuss.