Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Special offer available for this product. Click here to see!
Limited Time Offer. Click here to see!
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Is this a Mil-spec or commercial buffer tube? Expert Answer

This is a rifle or A2 length tube, there is no commercial variant for rifle tubes.

by Ethan C., Gear Expert, September 11, 2019
what is the over all length of the buffer? Manufacturer Answer

The 308 rifle buffer will be 5.30" long end to end.

by Luth-AR, Manufacturer, April 22, 2026
Customer Reviews
Helpful Positive Review
It seems a unique style to me by John Reynolds, Verified Owner, May 31, 2022
It is a non-adjustable buffer tube which seems intended for use with the non-adjustable Luth Buttstock. A screw in the butt end attaches to the buffer tube end. The buffer tube is threaded all the way into the lower receiver (to cover the buffer st...
Read More...
1/2 found this helpful
Helpful Positive Review
A solid Buy by David Basford, Verified Owner, March 16, 2020
If you are looking for a soft shooting ar, then you need a rifle length extension tube. And if you need an extension tube than you need a quality one. That's what you get with this. Solid construction that wad built to do one job.
4/4 found this helpful
Helpful Positive Review
Luth- AR 308 Buffer Tube Assembly by FlacidStihl, March 9, 2021
Fit perfectly as expected. A couple extra bucks if worth the simple upgrade in quality. Has a texture in the metal that is an obvious step up from regular matte finishes. Just do it and quit scrolling like I did.
2/2 found this helpful
Helpful Positive Review
Quarantine Build by Jarred, Verified Owner, April 24, 2020
This parts bundle was a God-send. I only wish that it came as a bundle with stock included if it would shave off just a small portion of the price. It’s a good quality feel and fits perfect in an Aero lower.
2/2 found this helpful
Most Recent Reviews
6.5 Creedmore build by CP-10, Verified Owner, May 8, 2026
Bought the Luth-AR A2 Buffer for Aero Precision build. Great quality and fast shipping.
Most Recent Reviews
Super high-quality by NickNine, Verified Owner, February 18, 2025
This luth AR 308 rifle buffer tube assembly is amazing. It was super easy to install and the quality is great. I would recommend this with using a A2 stock. I used this on my DPMS Stag 10 lower. No complaints. The finish is amazing. The price was als...
Read More...
Read All 13 Reviews
Color:
Black
Finish:
Hardcoat Anodized
Gun Make:
AR Platform
Gun Model:
AR-10
Condition:
New
Weight:
11.2 oz

Code: 3FN-BFA-33LUTH-BAP-308

MPN: BAP-308

UPC: 859819007256

List: $74.95Save $4.50
$70.45

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Luth-AR .308 Rifle Buffer Tube Assembly

Kit includes everything for a new .308/7.62 AR A2 Rifle build or to convert your current AR Carbine to a A2 AR Rifle buffer tube recoil system.image

Note: Converting a carbine length gas system to use a A2 Rifle length buffer system may cause reliability issues.

Specifications for Luth-AR .308 Rifle Buffer Tube Assembly:

Manufacturer: Luth-AR
Color: Black
Finish: Hardcoat Anodized
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-10
Condition: New
Weight: 11.2 oz
Projectile Caliber: .308 Caliber
Country of Origin: USA
Caliber: .308 Winchester
Gun Type: Rifle

Package Contents:

  • Luth-AR .308 Rifle Buffer Tube Assembly
  • (1) .308/7.62 Buttstock Extension Tube
  • (1) Standard .308/7.62 Buttstock Buffer Spring
  • (1) Standard Buffer Body Assembly 5.3 oz

Luth-AR .308 Rifle Buffer Tube Assembly Orderable Models

List of Orderable Models

  • Luth-AR 308 Buffer Tube Assembly, Rifle, Black, BAP-308 , MPN: BAP-308 , UPC: 859819007256 , Code: 3FN-BFA-33LUTH-BAP-308

Luth-AR .308 Rifle Buffer Tube Assembly Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Luth-AR 308 Buffer Tube Assembly, Rifle, Black, BAP-308 , MPN: BAP-308-EDEMO , Code: 3FN-BFA-33LUTH-BAP-308-EDEMO-WP-F
  • Open Box, Dealer Demo, Luth-AR 308 Buffer Tube Assembly, Rifle, BAP-308 , MPN: LUTHBAP-308-DMO , Code: 3FN-BFA-33LUTH-BAP-308-DMO
Compare (0)
Last updated 2026-09-18 UTC.