Redline Poppet Shim Kit Hop Up Parts Includes rubber hop up unit

Includes rubber hop up unit installed

Attaches to any standard 1913 picatinny rail

This chamber is a great compliment to the Wolverine BOLT system too

Made to fit the TEC9 AEG Echo 1 gun

Designed as lightweight option for carrying all your essential battle gear

Redline Poppet Shim Kit Hop Up Parts Includes rubber hop up unitThe Redline Poppet shim kit allows you to tune the airflow through your stock PolarStar Poppet. You can swap or combine the color coded shims to achieve the ideal airflow for your gun. The Redline Poppet shim kit gives you all the benefits of a low flow Poppet with the added advantage of shorter poppet dwell times and multiple possible air flow configurations. By adding a shim or shims to your Poppet you reduce the Poppets travel. Reducing the Poppets