Slim 9 Booster Springs (5-Pack)

These booster springs are designed for the Nielsen device on your Slim 9 suppressor.

We recommend that you replace your spring every 1,000 rounds or once per year for the best performance.

This product includes five OEM springs sized to factory specifications.

SHIPPING NOTE:  If you are only ordering an accessory (and not a suppressor) then at Checkout you will not need to Select an FFL Dealer for shipping.  To the right of the button of the "Find and Select FFL Dealer" there is a link that says "Click here to enter it manually."  Click that link and enter your shipping information as requested.  Thanks!