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Questions & Answers
Are the bolt and spacer included? Expert Answer

The Luth-AR 308/223 Rifle Buttstock Extension Tube does not include the 3/8" spacer for an A2 stock.

by Ethan, Gear Expert, March 25, 2022
Is this tube also considered to be compatible with the Magpul UBR Gen2? Expert Answer

The Magpul UBR Gen II is compatible with carbine as well as A5 and SR25 length buffer systems. This is an A2 buffer tube and will not be compatible. I would recommend the Bravo Company MFG Intermediate Receiver Extension A5 Buffer Tube found using the following link:
https://www.opticsplanet.com/bravo-company-mfg-intermediate-receiver-extension-a5-buffer-tube.html

by Ethan, Gear Expert, March 25, 2022
Customer Reviews
Helpful Positive Review High Quality Product by DominickTheDonkey, Verified Owner, December 21, 2020
Not much to say, it's about the simplest part of an ar15/10. It's fit and finish are great, functions as it should. Durable as any other option. No reason to spend 5 times as much, great price and quality for any build, budget or best of the best.
1/1 found this helpful
Most Recent Reviews Tubular fer sure by Rogue Penguin, Verified Owner, June 20, 2024
Basic no frills A2 receiver extension. It does not come with a spacer or screw. Higher price than the other "made elsewhere" tubes that come with hardware. If you want to buy Made in American, this is an option.
Most Recent Reviews Fine Product by KnifeMaker, Verified Owner, August 13, 2021
I have installed the extension tube into the Luthar but stock and it was a good fit. Can't ask for more! It is installed on a custom sniper rifle. Love it! I looked at the Mag pol but this was so much lighter. An advantage for how I use my Rifle. ...
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Most Recent Reviews decent buffer tube by Alex Gustafson, June 11, 2021
the inside of the tube has inconsistencies and is not as smooth as i would like it to be for running a scs idk if it matters but i look for the extensions with the inside smooth, probably just being anal..................................................
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Most Recent Reviews Simple and Cheap by DominickTheDonkey, Verified Owner, December 21, 2020
Not much more to say, it's a great price, and functions exactly as it should. Finish was great, no complaints. Would definitely recommend for any AR15 build, budget or best of the best. No reason to spend 10 times as much, looks and functions the sam...
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Most Recent Reviews Quality Product by Cornflake, October 5, 2018
Seems to be a well made buffer tube. Time will tell if it will hold up but initial impressions are good. Luth makes good products and this seems to be right on par with that. Let’s face it it’s a buffer tube so not much more to say.
Read All 6 Reviews
Color: Black Gun Make: AR Platform Gun Model: AR-10 Gun Type: Rifle

Code: 3FN-RBT-34LUTH-BS-09

MPN: BS-09

UPC: 859819007119

List: $40.99Save 27%
$29.99

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Product Info for Luth-AR 308/223 Rifle Buttstock Extension Tube A2

AR Buttstock Extension Tube A2image

Material: 6061 T6 aluminum impact extrusion

Installing A2 rifle buffer system on a carbine may affect function.

There is no difference between a .223 and .308 A2 tube, they are the same.

SKU: LBS-09

Specifications for Luth-AR 308/223 Rifle Buttstock Extension Tube A2:

Manufacturer: Luth-AR
Color: Black
Fabric/Material: 6061 T6 aluminum impact extrusion
Gun Make: AR Platform
Gun Model: AR-10
Gun Type: Rifle
Weight: 3.2 oz
Caliber: .308 Winchester, .223 Remington

Package Contents:

  • Luth-AR 308/223 Rifle Buttstock Extension Tube A2

Luth-AR 308/223 Rifle Buttstock Extension Tube A2 Orderable Models

List of Orderable Models

Luth-AR 308/223 Buttstock Extension Tube A2, Black, BS-09 , MPN: BS-09 , UPC: 859819007119 , Code: 3FN-RBT-34LUTH-BS-09
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