Strike Industries AR-15 Buffer Tube - 7-Position Advanced Receiver Extension - Black

Manufactured by Strike Industries
Manufactured by Strike Industries
1 Review

In Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 1 business days or less. FFL orders take approximately 10 business days or less if you can provide us an actively receiving FFL location. Due to high demand, there is a limit of 5 FFL items in a 30 day period.



Note: Not compatible with rifle length buffers or springs. Internal length is the same as a standard carbine buffer tube.

The Strike Industries 7-Position Advanced Receiver Extension offers more adjustment for your carbine stock as well as additional features that make this an easy choice when upgrading from your Mil-Spec buffer tube. This AR-15 buffer tube features a supported buffer retaining tab that makes it easier to index as well as scalloped cuts that decrease friction with tight fitting stocks. Each receiver extension is machined from 7075-T6 aluminum and comes in multiple different anodized finishes, so you can customize your AR-15 to look exactly how you want. The SI 7 position advanced receiver extension also allows you to use the Pit Viper stock for an extremely compact and minimalist set up.

  • Machined from 7075-T6 aluminum with anodized black finish
  • For use with carbine buffers and springs
  • Internal length is the same as a carbine buffer tube
  • Mil-Spec outer diameter for use with a wide range of stocks
  • Compatible with AR-15 and AR-10 lower receivers
  • 7 total length of pull adjustments
  • Supported buffer retainer
  • Compatible with SI Pit Viper Stock

Strike Industries products are designed by shooting experts for the shooting sportsman. They have anything from AR-15 parts and accessories to Glock components so you can completely customize your set up no matter what you run. Their complete line of innovative products come in a huge variety of colors and finishes so you can not only customize function, but personalize your look. You can’t go wrong with Strike Industries.
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BrandStrike Industries
FinishAnodized Black
FitmentMIL-SPEC - 1.14 in
MaterialAluminum - 7075-T6
Weight3.8 oz.

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

1 review

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Not Impressed.

by -

Not very impressed, and not worth the price. The finish is OK, but time will tell how durable - has a distinct matte spray paint look. The interior of the tube is full of imperfections and will need to be well lubed or possibly even lapped/reamed to work efficiently. When I look at several other more well known manufacturers tubes, i.e. Spikes, Bravo and on, the interior is smooth and in some cases finished with a dry lube in order to work the best possible. They also tend to cost less than this one. The angular shaping on the outside looks cool, but that with one extra position for the stock does not make it worth the money.