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Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set A2BUF+SPR-308 Color: Black, Gun Make: AR Platform, 11% Off

GUNTEC USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set,.308 Cal A2BUF+SPR-308
GUNTEC USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set,.308 Cal A2BUF+SPR-308
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GUNTEC USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set,.308 Cal A2BUF+SPR-308

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Questions & Answers
what is the weight of the buffer? Do you have an AR-10 rifle length buffer tube assembly for 24 inch barrel that works with an adjustable butt stock? Expert Answer

This Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set is only compatible with A2 rifle length stocks. You are looking for an A5 system, which is rifle length and allows you to use adjustable buttstocks, but also requires a specific buffer. I would recommend using the V Seven 2055 Carbine Buffer Tube (linked below), and the V Seven Enhanced Teflon Coated A5 Buffer (linked below).
https://www.opticsplanet.com/v-seven-2055-carbine-buffer-tube-a5.html
https://www.opticsplanet.com/v-seven-enhanced-teflon-coated-a5-4-6-oz-buffer.html

by Ethan, Gear Expert, July 11, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Negative Review
Not an AR-10/LR 308 Buffer - actually an AR-15 A2 rifle buffer in disguise. by kojock, October 16, 2016
This is an AR-15 a rifle buffer being packaged as an AR-10/LR-308 buffer. Spring seems to be the right length and number of turns but the buffer is a full 6" long and too long to allow the BCG to engage the follower in the mag to hold the bolt open (...
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7/9 found this helpful
Most Recent Reviews
THIS IS AN ar 15 BUFFER, by kERRY, October 15, 2021
ar15 AND ar10 RIFLE BUFFERS ARE NOT THE SAME. ar10 IS 5-5/16" LONG, ar 15 IS 5.8" LONG AND DOES NOT WORK IN AN ar10!!! ar15 AND ar10 RIFLE BUFFERS ARE NOT THE SAME. ar10 IS 5-5/16" LONG, ar 15 IS 5.8" LONG AND DOES NOT WORK IN AN ar10!!! ar15 AND...
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1/1 found this helpful
Most Recent Reviews
Buffer too long by Stallion, Verified Owner, December 7, 2016
Same experience as the previous reviewer. Buffer is too long preventing the BCG from travelling back the required distance. Otherwise it is of expected quality for GUNTEC stuff, however like the previous reviewer I am out of my return date as I wante...
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2/2 found this helpful
Read All 3 Reviews
Color:
Black
Gun Make:
AR Platform
Gun Model:
AR-10

Code: 2AH-BFA-A2BUF-SPR-308

MPN: A2BUF+SPR-308

List: $47.49Save 12%
$41.99

Product Info for Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set

Full Size A2 Rifle Length .308 Cal Buffer Mil -spec Chrome Silicon .308 Cal Rifle Length Spring Includedimage

Specifications for Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set:

Manufacturer: Guntec USA
Color: Black
Gun Make: AR Platform
Gun Model: AR-10

Package Contents:

  • Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set

What firearm models does the manufacturer say Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set is compatible with?

The manufacturer suggests that Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set is compatible with AR-10

Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set Orderable Models

List of Orderable Models

  • Guntec USA AR-10/LR-308 Full Size A2 Rifle Buffer Spring Set, .308 Cal, A2BUF+SPR-308 , MPN: A2BUF+SPR-308 , Code: 2AH-BFA-A2BUF-SPR-308
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Last updated 2026-10-01 UTC.