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When you're putting together an AR pistol, the buffer tube is one of those parts people tend to overthink. A collapsible-style tube looks out of place on a pistol build and adds bulk you don't need. The CMMG Pistol Tube Assembly clears that up with a round, smooth-sided tube that gives your pistol a clean profile and a solid mounting surface for the back of the gun. Best part is you don't have to buy a whole new recoil setup to run it. Reuse your existing buffer, spring, and castle nut, drop in the new tube, and you're done.
This tube is machined from 6061 aluminum with a hard anodized finish, so it holds up to grit, sweat, and the occasional bump without wearing through. It runs 7.28 inches long with a 1.253 inch outer diameter and tips the scale at right around 4.94 ounces, keeping the rear of your build light and trim. The circular shape isn't just for looks either. It gives you a natural cheek weld area and a consistent surface to work with when you're setting up a pistol brace or running the gun bare.
Installation is straightforward if you've worked on an AR before. You'll want a castle nut wrench and an armorer's tool to torque things down properly, but there's nothing exotic going on here. The kit ships with the pistol buffer tube and an ambidextrous sling receiver end plate, which is a nice touch since it lets lefties and righties both attach a single-point sling without hunting down an extra part.
It's built for AR-platform pistols and pairs well with the buffer components you're already running, which makes it an easy upgrade or a smart pick for a fresh build. If you want your pistol to look and feel like it was meant to be a pistol from the start, this is the piece that gets you there.
No, that's the whole idea behind this kit. It's designed to reuse the buffer, spring, and castle nut you already have on your build. You're really just swapping the tube itself and adding the included end plate.
It's built for standard AR-platform pistols, so it threads onto a mil-spec lower receiver like any other pistol tube. As long as your lower is set up for a pistol receiver extension, this drops right in. Just reuse your existing castle nut and end plate hardware where needed.
A castle nut wrench and a standard AR armorer's tool will cover it. The install follows the same steps as any buffer tube swap, so if you've built or worked on an AR before, it's quick. Torque the castle nut down properly and you're good to go.
Yes, it ships with an ambidextrous sling receiver end plate. That means you can run a single-point sling from either side without buying an extra part. It's a handy detail for both left and right handed shooters.
| UPC | 810103472808 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 55CA67D |
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