Magpul UBR Collapsible Buttstock

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 with ease. The UBR also provides extra counterbalance weight to improve handling on full-length rifles and weapons with muzzle-heavy accessories or bull-barrels. 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-Length 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 U.S.A.

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/ integral 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
o Front / Rear - Single-side push-button QD sling mounts (Left-Right Reversible)
o 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"
* Enhanced Rubber Butt-Pad, 0.70"
* Aluminum Strike Plate w/ 1.25" sling loop
* Dual-side push-button QD Sling Mount Sockets

Specifications**

* UBR Collapsible Butt Stock (w/ Rubber Butt-Pad, 0.30")
o Weight, Stock: 1.48 lb.
o Weight, w/ Entry Receiver Extension: 1.65 lb.
o Length, Stock: 8.00-11.36 in.
o LOP Adjustment: 7-Position (0.56 in. / position)
o LOP Adjustment Range: 3.36 in.
o LOP, Collapsed (M4/M16): 11.1 in.
o LOP, Extended (M4/M16): 14.5 in.

*Standard Rubber Butt-Pad, 0.30" weight: 0.09 lb. Optional Extended Rubber Butt-Pad, 0.55" weight: 0.12 lb. Optional Enhanced Butt-Pad, 0.70" weight: 0.15 lb.

**Specifications based on factory configuration