Strike Industries Micro Threaded Compensator Circle Features The Strike Industries Micro Threaded Compensator Circle edition is built to redirect propellant gas and mitigate felt recoil and muzzle rise on any pistol using a 1/2 inch by 28 threaded barrel. Internal testing by Strike Industries shows an average felt recoil reduction between 8 and 15 percent depending on the specific application a meaningful improvement for faster follow-up shots. An included O-ring helps time and retain the compensator properly on the barrel with spare O-rings provided in the package for future maintenance. Made from AISI 1144 steel that is bead blasted and finished with a Quench Polish Quench process the compensator is both corrosion resistant and visually understated. At just 16.3mm or 0.64 inches in overall length this compensator was originally designed to maintain holster compatibility on smaller compact sub-compact and micro pistols where a longer comp would print or interfere with a draw. On full size pistols it can still serve as a thread protector with the added benefit of some muzzle control. Strike Industries notes that recoil spring tuning may be required after installation due to the reduction in slide energy caused by the compensator s gas redirection. Compatible with any 9mm or .357 Sig pistol using standard 1/2x28 threads this compensator gives shooters a compact versatile option across a wide range of handgun platforms. Strike Industries Micro Threaded Compensator Circle Specifications Manufacturer: Strike Industries Model: Micro Threaded Compensator Circle Color: Black Material: Steel Length: 0.64 Compatible Hosts: 9mm .357 Sig Thread Pattern: 1/2x28 Weight: 0.56 oz Caliber: 9mm Available At: GrabAGun