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
Ø Mounts on durable Entry Receiver Extension tube (Included) Ø 7-Position LOP adjustability with customizable preset system for fast access to preferred length Ø Multi-shell construction provides solid foundation and shields critical operating parts from penetration damage Ø Solid “fixed stock” lockup in all positions Ø Enhanced lock mechanism w/ impact buffer increases drop strength and shock reduction Ø Repositionable cheek piece accommodates users requiring extra eye-relief Ø Stout construction provides counterbalance weight for improved weapon balance and handling Ø Sling Mounts o Front / Rear - Single-side push-button QD sling mounts (Left-Right Reversible) o Bottom - 1.25" Sling loop Included Accessories*
Ø Storage Module (Left-Right Reversible / Removable) Ø Swappable Cheek Pieces (Standard and Wide) Ø Rubber Butt-Pad, 0.30” (Removable) Optional Accessories*
Ø Extended Rubber Butt-Pad, 0.55” Ø Aluminum Strike Plate w/ 1.25" sling loop Ø Dual-side push-button QD Sling Mount Sockets Ø AR10 / SR25 Buffer and Spring (For Armalite AR10 and KAC SR-25 type rifles) Specifications**
Ø UBR™ Stock (w/ Rubber Butt-Pad, 0.30”) o Weight, w/ Entry Receiver Extension: 1.56 lb. o Length, Stock: 8.00-11.30 in. o LOP Adjustment: 7-Position (0.56 in. / position) o LOP Adjustment Range: 3.3 in. o LOP, Collapsed (M4/M16): 10.9 in. o 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 |
