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Guntec USA AR-10/LR-308 Rifle Stock Tube Kit
$71.92 $56.89 Save 21%
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Most Helpful Negative Review Good tube, but..
The tube and spring are pretty solid and are durable. Big issue though. The buffer is about 2mm longer then other rifle buffers I have compared them too. Extra length was causing stovepipe jams and wasn’t allowing cycling.
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Buffer didnt last 65 rounds.

by Dc190, Verified Owner from CA, United States Written on April 25, 2025
I started having issues with feeding in my 6.5 AR and i got home to clean it and found the buffer in multiple pieces. Going to need a replacement.
Pros:
  • It fit my larue lower
Cons:
  • it broke
Best Used for:
  • trash
Would recommend: No
Was it helpful to you? Yes | No

Aero M5 no bueno

by Jerico23ban, Verified Owner from OR, United States Written on December 29, 2019
Full disclosure I have aero M5 build with fail zero chrome bolt carrier and this sprint is more than double the strength needed to cycle so that was first issue... then buffer roll pin loosened up and gouged the buffer tube almost locking it in place
Pros:
  • Cheap
  • AFFORDABILITY
Cons:
  • quality and lifespan
Best Used for:
  • High pressure over gassed systems
Would recommend: No
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Poor internals

by Straws, Verified Owner from MD, United States Written on August 2, 2019
Product was shipped to me spring of 2018. Thanks to OPTICS PLANET it arrived quickly and on time. However Guntec left the inside of the tube ribbed with an improper buffer spring and it caused my AR-10 to have unreliable cycling. Apologies for the late statement.
Would recommend: No
Was it helpful to you? Yes | No

GUNTEC USA Stock tube AR-10

by Nicholas, from CA, United States Written on January 21, 2017
doNice solid piece of equipment. Reliable product and well built. Took awhile to receive to product as it was on backorder. Looking forward to using it for years to come on my AR-10 Build. It does feel a little heavy, however it is built to last.
Pros:
  • reliable
Cons:
  • Heavy
Would recommend: Yes
0 of 3 found the following review helpful.
Was it helpful to you? Yes | No
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