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Questions & Answers
Will it still function on mid length gas system or is this for pistol length only?

I own a dozen of these, literally. It will function with any upper length, and gas tube length, however, I myself find it's super short , and I use them on my shorter builds, 5 to 10.5 inch barrels, and they're best suited for that.

by Dustin, Verified Owner, January 1, 2026
Does this take normal milspec buffer springs?

no. it does not

by Josh A, Verified Owner, August 11, 2025
Customer Reviews
Helpful Positive Review
These are awesome. I've used with 5.56 and 300blk. Started with the want for a compact 300blk sbr that'd fit in my vertex duffle without the need for a folder. A 5" barrel with this buffer system comes out to 18.5" collapsed. Loved it so much that i ...
Read More...
7/7 found this helpful
Most Recent Reviews
LWRCI Ultra Compact Stock by Andrew, Verified Owner, March 17, 2026
Perfect short buffer and stock for short setups with a great cheek weld for the size.
Most Recent Reviews
Perfect for my SBR by Aaron Bond, Verified Owner, March 10, 2026
This will make your short rifle shorter! I love it great quality
Read All 3 Reviews
Color:
Black
Gun Model:
AR-15
Gun Type:
Rifle
Condition:
New

Code: 1TX-BSC-2000092A01-200-0092A01

MPN: 200-0092A01

UPC: 859890005851

List: $144.00Save $8.00
$136.00

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 LWRCI Ultra Compact Stock Kit For Ar-15

The International UCIW (Ultra-Compact Individual Weapon) stock system shortens the overall length of the firearm by a full inch, as compared to a standard AR. The stock kit includes the stock, receiver extension, index plate, buffer, recoil spring and castle nut. The systems components were designed to work together and should be installed together for reliable performance. The stock is lightweight and features integral sling attachment points, easy one-hand adjustments and excellent cheekweld. The rubber buttpad prevents slippage during firing. The receiver extension has four positions to adjust the length of pull. Derived from our UCIW project, it is a great option for shortening the overall length of your rifle.image

Overall length of the stock kit (including castle nut and index plate) measures 5.75" collapsed and 9" at maximum extension

Specifications for LWRCI Ultra Compact Stock Kit For Ar-15:

Manufacturer: LWRCI
Color: Black
Gun Model: AR-15
Gun Type: Rifle
Condition: New
Country of Origin: USA

Package Contents:

  • LWRCI Ultra Compact Stock Kit For Ar-15

LWRCI Ultra Compact Stock Kit For Ar-15 Orderable Models

List of Orderable Models

  • LWRCI Ultra Compact Stock Kit For Ar-15, Black, 200-0092A01 , MPN: 200-0092A01 , UPC: 859890005851 , Code: 1TX-BSC-2000092A01-200-0092A01

LWRCI Ultra Compact Stock Kit For Ar-15 Unavailable & Discontinued Models

List of Unorderable Models

  • USED, LWRCI Ultra Compact Stock Kit For Ar-15, Black, 200-0092A01 , MPN: 200-0092A01-EDEMO , Code: 1TX-BSC-2000092A01-200-0092A01-EDEMO-OB-A
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