Description

These are stiffer springs for the MBT stocks. Includes 1 (one) spring.

Problem: Current MBT stocks are flaccid like a 95 year old man.  

Solution: These springs have thicker diameter adding to improved strength when stock is closed.

To install, punch out the hinge pin, replace the spring, install the pin, and go shoot.

***These may increase wear at the hinge point, use at your own risk***