Magpul® UBR

The Magpul® UBR™ (Utility / Battle Rifle), U.S. Patent 6651371, is a fully-featured, adjustable butt stock for the AR15 / M16. Unlike typical collapsing stocks, this modular design offers the stability of a fixed stock with consistent cheek weld in any position. Seven-position length-of-pull (LOP) adjustment is quickly executed with gross motor movement while the integral preset system allows direct access to a preferred position. A robust lock mechanism and multi-shell construction increase durability under severe impact conditions experienced during malfunction clearing and accommodates large-bore AR calibers. The UBR™ also provides extra counterbalance weight to improve handling on full-length rifles and weapons with muzzle-heavy accessories or grenade launchers. Optional components such as dual-side sling mounts and metal strike plate allow the UBR™ to adapt to the mission at hand.

Note: The UBR™ includes the necessary Entry Receiver Extension tube and all mounting hardware. An M4 Carbine Buffer and Spring are required for use with the UBR™ and are not included.

Made in USA

Features

• Mounts on durable Entry Receiver Extension tube (Included)
• 7-Position LOP adjustability with customizable preset system for fast access to preferred length
• Multi-shell construction provides solid foundation and shields critical operating parts from penetration damage
• Solid “fixed stock” lockup in all positions
• Enhanced lock mechanism w/ impact buffer increases drop strength and shock reduction
• Repositionable cheek piece accommodates users requiring extra eye-relief
• Stout construction provides counterbalance weight for improved weapon balance and handling
• Sling Mounts
  • Front / Rear - Single-side push-button QD sling mounts (Left-Right Reversible)
  • Bottom - 1.25" Sling loop

Included Accessories*

• Storage Module (Left-Right Reversible / Removable)
• Rubber Butt-Pad, 0.30” (Removable)

Optional Accessories*

• Extended Rubber Butt-Pad, 0.55”
• Aluminum Strike Plate w/ 1.25" sling loop
• Dual-side push-button QD Sling Mount Sockets
• AR10 / SR25 Buffer and Spring (For Armalite AR10 and KAC SR-25 type rifles)

Specifications**

• UBR™ Stock (w/ Rubber Butt-Pad, 0.30”)
  • Weight, w/ Entry Receiver Extension: 1.56 lb.
  • Length, Stock: 8.00-11.30 in.
  • LOP Adjustment: 7-Position (0.56 in. / position)
  • LOP Adjustment Range: 3.3 in.
  • LOP, Collapsed (M4/M16): 10.9 in.
  • LOP, Extended (M4/M16): 14.2 in.

* Removing Standard Rubber Butt-Pad subtracts 0.30 in. LOP and 0.09 lb. Optional Extended Rubber Butt-Pad, 0.55” adds 0.25 in. LOP and 0.02 lb. vs. standard pad. Butt-pads are compatible with UBR™, ACS™, CTR™ and MOE™ carbine stocks.

** Specifications based on factory configuration

Due to ITAR restrictions this item, or some of its components, cannot be exported from the United States of America without a valid U.S. State Department export permit. Additionally, there may be local laws for which the customer is responsible.