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The buffer tube is one of those parts most folks never think twice about until they're chasing a wobbly stock or fighting a tight fit. The Strike Industries Advanced Receiver Extension takes that overlooked component and gives it some real thought. It's a 7-position Mil-Spec diameter tube machined from 7075-T6 aluminum, which is a step up in strength over the 6061 you'll find on a lot of standard tubes. That extra position gives you finer length of pull adjustment, so you can dial the stock in exactly where it feels right.
The scalloped surfaces are the standout here. Those cuts reduce friction with tight-fitting stocks, so your collapsible stock slides clean instead of dragging, and they trim weight while keeping mass where the tube takes the most stress. It also has a supported buffer retaining tab, which does double duty: it makes the tube easier to index during install and helps keep the buffer retainer pin captured. That second part is handy because those ears help stop the tube and stock from rotating even if your castle nut works a hair loose over time.
This is a carbine-length receiver extension, so it runs standard carbine buffers and springs. It threads onto any Mil-Spec AR15 lower and works across AR-15 and AR-10 builds. Internal length matches a standard carbine tube, meaning it is not set up for rifle-length buffers or springs. If you're running the Strike Industries Pit Viper stock, this tube is built to pair with it for a compact setup.
The Black anodized finish gives it a clean, matte look that plays well with just about any furniture. At roughly 3.8 ounces it stays light without feeling flimsy. Whether you're starting a fresh build or swapping out a plain factory tube, this is a simple, worthwhile upgrade that adds both function and a little visual character to the back half of your rifle.
No, this is the buffer tube on its own and does not include a castle nut or end plate. You'll want to reuse the ones from your current setup or grab a fresh castle nut and end plate for the install. Strike Industries makes their own enhanced castle nut and end plate if you want a matched set.
It runs standard carbine-length buffers and springs, since the internal length matches a typical carbine tube. That means a carbine buffer kit or an enhanced carbine buffer will drop right in. It is not set up for rifle-length buffers or springs.
Yes, it threads onto any standard Mil-Spec AR15 lower receiver and is compatible across AR-15 and AR-10 builds. The Mil-Spec diameter profile also means it works with standard Mil-Spec collapsible stocks. If you run a Strike Industries Pit Viper stock, this tube is built to pair with it.
It's machined from 7075-T6 aluminum, which is stronger than the 6061 used on a lot of basic tubes, and it adds a seventh adjustment position for finer length of pull. The scalloped cuts reduce friction with tight stocks and shave weight, while the supported buffer retaining tab makes it easier to index and helps keep things from rotating loose.
| UPC | 708747546118 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARARET7BK |
| Color | Black |
| Product Type | Buffer Tube |
| Style | Extension |
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