Superlative Arms LLC.
SPRING - Op Rod - Piston System
QTY: (1) per order.
For use with: The Op Rod Spring for all Piston SKU#'s
NOTE: Not required to safely operate the piston system. We do not use these springs on our personal builds, military or law enforcement builds. We have done a 10,000 round torture test without the op rod spring resulting in zero failures. This is just a mag release spring that helps eliminate the small amount of rattle the op rod has inside the gas block. This spring will fail at a certain point and will need to be replaced. You should inspect your spring after each use if you choose to use it.