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Upon a 2nd round of testing the compensator performed perfectly. I would make a note that it performed so well that you will need to replace the 17# spring with a lower pound spring. For myself a 13# worked great. Everything functioned extremely well after replacement.
After testing the barrel without the compensator everything worked flawlessly. No issues with cycling at all. The barrel has superior accuracy in comparison to the standard barrel.
The barrel seemed to fit perfectly into the Glock 17 2nd generation. Upon testing the group of (10) shots achieved a 2.4" group at 40 ft., excellent results. However, not a single shell would eject from the barrel. I tried different ammo manufacturers but always the same result. I will have to test further as I have never had this issue with any of the many GLocks I have.
I tested this product on a Glock 17 2nd generation. It performed quite well. There was a significant realized drop in muzzle rise. I have not as of yet measured the muzzle rise drop but will compare it to another Glock 17 without the compensator and obtain actual numbers. The product appears to function well. The compensator did not come loose after firing over (50) rounds.