Want to reduce muzzle rise and lessen the recoil on your Glock®G19 without making it cumbersome to carry? The Zev Technologies Glock®V2 PRO Compensator offers the benefits of a muzzle brake without compromising your ability to carry and conceal your handgun. Each Zev Glock®V2 PRO Compensator builds on the success of the company's original compensator design by providing an enlarged guide-rod channel, contoured ports and a mounting system that doesn't require thread-locking compound for a secure, tight fit. When installed on a Glock®G19, the overall profile of the gun matches the footprint of the Glock®G34, and the system will fit most G34 holsters. Though the Zev V2 PRO Compensator was designed for the G19, the system will work on all 9mm Glock®handgun barrels with the same thread pitch. The company recommends matching recoil-spring weight to your pistol and ammunition type for the best possible performance. Available thread pitches are 1/2x28 TPI and 13.5x1mm