Guntec USA AR-15 MIL-SPEC Buffer Tube Set - Black

Manufactured by Guntec USA
Manufactured by Guntec USA
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Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



Guntec USA has been designing, manufacturing, and distributing tactical weapon accessories since 1989. Their goal is to supply excellent quality, at an economical value to professionals and enthusiasts alike.

The Guntec MIL-SPEC AR-15 Buffer Tube Set is a durable aluminum receiver extension perfect for a build on a budget. Size for MIL-SPEC components, the receiver extension will accept any MIL-SPEC diameter stock on the market. In addition to the receiver extension, this kit includes an end plate, chrome spring, castle nut, and 3 ounce buffer.

NOTE: Not compatible with commercial spec stocks.

  • Aluminum construction
  • Complete buffer tube kit
  • 6-position receiver extension
  • End plate
  • Castle nut
  • 3 oz carbine buffer
  • Chrome spring
  • Made in the U.S.A.
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BrandGuntec USA
FitmentMIL-SPEC - 1.14 in

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

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