The Phase 5 Universal Mini Stock (UMS) is a fixed stock solution for your rifle that fits on a variety of buffer tubes and receiver extensions. Proudly made in the USA from USA sourced raw billet 6061-T6 aluminum. – Lighter than most polymer adjustable stocks at (5.7 oz.) –  and it’s easy to install.

UMS Stock
(2) Set screws
(1) Extended hex key


Mil-Spec 6-position carbine receiver extensions
Phase 5™ HexOne Buffer Tube
Phase 5™ Hex-2 Buffer Tube
Most cylindrical buffer tubes, 1.10”-1.25” OD*
Rifle length receiver extension tube*The set screw will be more secure on the cylindrical buffer tubes if you put a small dimple on the tube.*

Manufacturer Part Number: UMS

Dimensions: 5 x 1-3/4 x 2-1/4 inches

Weight: 5.7 oz.

Material: 6061-T6

Aluminum Finish: Black MIL-A-8625 Type III Class 2 hard coat anodizing