UTG PRO Mil-spec 6-position Extension Tube | Selectable

As low as $27.97
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Six position, Mil-spec receiver extension (Buffer) tube for Modern Sporting Rifles.

Ready: Pick Your Starting Point.

The first thing on your gear list is the gear focus. From shotgun cleaning kits to a Shockwave home defense pack, or even a steel target system, we've created the perfect starting points to accommodate a variety of situations, needs and adventures - and the list keeps on growing.

Set: Add Items To Your Bundle.

Next, is to assemble your bundle by scanning the different gear options. If it's a cleaning kit you're building, you may see a variety of options for brush calibers, solvents, and even cleaning pads. The gear options are shown in tiles and you simply need to click “Add to Bundle” for the items you need. Additional gear information will appear if you click the 'i' in the top left of the gear tile. Keep in mind, the more gear you select, the more you save. And as you grow the number of items in your bundle your discount will be shown in the top right of the screen. Here's how discounting works:

  • $25-$50 combined orders receive 5% off and free shipping!
  • Combined orders over $50 receive 15% off and free shipping!

Bundle!: Add To Cart & Purchase.

Once you add the first item to your bundle, a status bar will appear at the top showing the number of items in your bundle, a button to view your bundle summary, and sum of your building discount. At the bottom of the screen, you'll see the bundle price and simply click "Add to Cart" once your bundle is built.

And of course, if you need additional help with buidling your own custom bundle, don't hesitate to contact us.

Product Description

This is a precision MIL spec buffer tube. CNC machined out of 6061 T6 aluminum and built to exacting standards by American Craftsmen. Available in four different anodized colors or FDE Cerakote.

Note: Not available for international sales.


  • AR-15, 6-position Mil-spec diameter receiver extension (buffer) tube.
  • Machined from 6061-T6 Aircraft Grade Aluminum with precise thread engagement with the lower receiver.
  • Function tested with a variety of collapsible stocks to insure it's flexibility.
  • Type III class II hard coat anodize finish- black, blue, bronze, red. Or, FDE Cerakote for superior wear and corrosion resistance.

4 oz
MSR 15 (5.56/.223)
Firearm Model
Modern Sporting Rifle
Firearm Brand
Multiple Brands
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