Introducing the new Booster. 

The use of the booster assembly allows your semi-auto device to properly cycle when the weight of a solvent cleaning tube is added to the end of your semi-auto device. Most semi-devices with a browning type action will require a booster to properly cycle.

Weight 5.4oz 150g
Booster assembly includes piston and spring
Booster threads are 1.375x24 (1-3/8x24)


Dimensions: 1.5 x 1.5 x 2.15 in
Size. 1/2 x28 9mm Cal or 5/8 x 24

A booster is required for all semi-device that utilize the Browning-type action. The use of the booster allows your semi-auto device to properly cycle when the weight of the solvent cleaning tube is added to the end of your semi-auto device.

Material: Stainless Steel and Aluminum