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UBR™ Collapsible Stock



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MSRP: $289.51
Our Low Price: $251.75
You save $37.76!

Usually Ships in 24 to 48 Hours

Magpul Options

Black (MAG330-BLK)
Dark Earth (MAG330-FDE)
Olive Drab (MAG330-ODG)

UBR™ Collapsible Stock
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.

Made in U.S.A.

- Mounts on durable Entry Receiver Extension tube (included) to accomodate the common M4 carbine buffer and spring
- 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:
- Front / Rear - Single-side push-button QD sling mount sockets (Left-Right Reversible)
- Bottom - 1.25" Sling loop
Included Accessories:
- Storage Module (Left-Right Reversible / Removable)
- Rubber Butt-Pad, 0.30" (Removable)
Specifications UBR Collapsible Butt Stock (w/ Rubber Butt-Pad, 0.30")
- Weight, Stock: 1.48 lb.
- Weight, w/ Entry Receiver Extension: 1.65 lb.
- Length, Stock: 8.00-11.36 in.
- LOP Adjustment: 7-Position (0.56 in. / position)
- LOP Adjustment Range: 3.36 in.
- LOP, Collapsed (M4/M16): 11.1 in.
- LOP, Extended (M4/M16): 14.5 in.
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.
7.62x51 ARs may require the use of a custom short buffer and spring.

This product and/or its components is subject to the International Traffic in Arms Regulations (ITAR, 22 CFR Parts 120-130), the Arms Export Control Act (22 USC 2778), or the Export Administration Act of 1979, as amended (22 USC App. 2401 et. seq.), and Export is strictly prohibited without authorization or a license issued by the U.S. Department of State's Directorate of Defense Trade Controls.
Additionally, any documents or engineering drawings, prints, etc. that can be viewed, downloaded, or printed from our Web site may contain technical data which may not be exported outside of the United States, or released or disclosed to non-US persons (i.e. persons who are not US citizens or lawful permanent residents) inside of the United States, without prior written authorization by the relevant US Government agency.
Violations of these export laws are subject to severe civil, criminal and administrative penalties.

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