Booster:
1. The use of the booster assembly allows pistols to properly cycle when the weight of asuppressor is added to the end of the barrel.
2. Most pistols with a browning type action (Sig Sauer, HK and etc.) will require  a booster to properly cycle.
3. Weight 3.0oz

4. Booster assembly includes piston
5. Booster threads are M34x1.25.
6. For use with centerfire pistol ammo on semi-auto handguns only.
7. NO rimfire ammo in this device. It will cause baffle strikes and sluggish operation.
1/2x28, .5/8x24, 578x28, 9/16x24, 13.5x1LH available
Suitable for Beretta, SIG, S&W, H&K......

5-8 x 24 Compatible Calibers:
.308
45 ACP
.40
30-30
30-06
300
333 Lapua

6.5 Grendal

1-2 x 28 Compatible Calibers:
.22
9mm
17HMR
5.7x28
5.56
.223
.243
.270