Threaded Barrels: Yes, the Mass Driver Comp is compatible with most GLOCK™ aftermarket threaded barrels. We've tested with the majority of the popular brands on the market but not all. However, we recommend using with non-threaded barrels if possible.
-For GLOCK™ GEN 1, GEN 2 or GEN 3 G17 (standard) SLIDES
-Holsters: SI Mass Driver Comp sits flush with OEM GLOCK™ slides and can be used in most open-ended holsters that accommodate compensators
-Recommended torque value for the guide rod nut is 25 lbs/in.
-Use with +P and +P+ 9mm ammo will produce premature internal spring wear and cause failure
COMPENSATOR MAIN BODY:
-WEIGHT: 3.2 oz
-WEIGHT w/ PACKAGE: 6.7 oz
FLAT WIRE SPRING RATES:
-G17 STANDARD: 17 lbs/in.
-G19 COMPACT: 18 lbs/in.