Universal Mini Stock (UMS)

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. The UMS offers a smaller footprint and bottom curve which makes for a far superior anchor of the stock on the chest. This allows an operator to get in and out of postion with greater of ease. Utilizing two heavy duty set screws, the UMS offers easy installation on receiver extension tubes.

*The Universal Mini Stock (UMS) is a stock to be installed on a rifle. Installing a stock on a Pistol would be considered an SBR (short-barreled rifle). If you don't have the required tax stamp, it is illegal to possess an SBR.


  • 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.There will be empty space between the stock and tube with most cylindrical tubes.


  • Finish-Black: Black Anodize
  • Finish-Red: Red Anodize
  • Finish-Blue: Blue Anodize
  • Finish-Grey: Grey Anodize
  • Finish-MG: Satin Mag Cerakote (code H-147)
  • Finish-FDE: MagPul Flat Dark Earth Cerakote (code C-267)
  • Finish-ODGreen: Mil Spec OD Green (code H-240)

GSA Contract: GS-07F-0403M, Schedule 84

Prop 65 Warning

Item Price: $75.00
Overall Length:
5 Inches
Product Weight:
Made in the U.S.A.

Universal Mini Stock (UMS)

Proudly made in the USA from USA sourced raw billet 6061-T6 aluminum. - Lighter than most polymer adjustable stocks at (5.7 oz.) - Easy installation

Universal Mini Stock (UMS)

Specs: - 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

Universal Mini Stock (UMS)
Universal Mini Stock (UMS)
Universal Mini Stock (UMS)
Universal Mini Stock (UMS)