- Mounts on a durable custom Receiver Extension tube (included) to accommodate carbine buffers and springs as well as aftermarket A5 buffer systems*
- Solid "fixed stock" lockup and consistent cheek weld in all positions
- 7 adjustments plus fully collapsed for 8 total positions
- Adjustment lever requires only gross motor movement to operate yet the entire stock remains streamlined and anti-snag
- Enhanced lock mechanism with dual locking pawls for maximum 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
- Storage Compartment in tail of stock is removable and the door is reversible for user preference
- Rubber butt-pad offers an anti-slip surface and increases impact protection
- Rollover on the toe allows for easier shoulder transitions and better fit when using body armor
- Sling Mounts
- Front - QD swivel mount for ambidextrous one-point QD sling mounting
- Left/Right Rear - Rotation-limited QD swivel sling mounts fit up to 1.5" push-button swivels
- Bottom - 1.25" sling loop (additional loop accessible when Storage Compartment is removed)
*The UBR GEN2 includes the required custom Receiver Extension tube, Buffer Spacer, and all mounting hardware. A carbine buffer and spring (M4 or SR-25 length) or A5 buffer and spring are required for use with the UBR and are not included.
