UBR® Collapsible Stock -Black
The Magpul UBR (Utility / Battle Rifle), is a fully-featured, adjustable buttstock for the AR15/M4. 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. Made in U.S.A. FEATURES
- Mounts on durable Entry-Length Receiver Extension tube (included) to accommodate the common M4 carbine buffer and spring∗
- 7-Position LOP adjustability with customizable preset system for fast access to preferred length
- Adjustment lever requires only gross motor movement to operate yet the entire stock remains streamlined and anti-snag
- Solid “fixed stock” lockup and consistent cheek weld in all positions
- Enhanced lock mechanism w/ internal impact buffer increases drop strength and shock resistance
- Multi-shell construction provides solid foundation and shields critical operating parts from penetration damage
- Sloping cheek weld combines a slim profile with user comfort
- Stout construction provides counterbalance weight for improved weapon balance and handling
- Storage compartment in tail of stock is removable and the door is reversible for user preference
- Removable 0.30″ Rubber Butt-Pad offers an anti-slip surface and increased impact protection
- Sling Mounts
- Front/Rear – Reversible QD swivel sling mounts fit up to 1.5″ push-button swivels (swivel not included)
- Bottom – 1.25″ sling loop
- Weight: 23.5 oz.
- Weight, w/Entry Receiver Extension: 26.1 oz.
- Length, Stock: 8.0-11.4 in.
- LOP Adjustment: 7-Position (0.56″/position)
- LOP Adjustment Range: 3.4 in.
- LOP, M4 Collapsed: ∼11.1 in.
- LOP, M4 Extended: ∼14.5 in.
∗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.7.62×51 ARs may require the use of a custom short buffer and spring.∗∗Specifications based on factory configuration
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