Last week, I had a comp installed on my HK VP9A1K at the PMM shop in NH to improve accuracy with quick follow-up shots. Today, shot 200 rounds to see which ammo works and observe how the compensator affects the VP9’s performance. Monday: running timed drills to check if my speed has improved.
Adding the comp shifted the VP9’s balance forward. I had to slightly adjust my grip pressure and re-zero my red dot by 5 clicks left and 6 down. The pistol felt noticeably different, and during doubles drills, the dot stayed in the window for the first time—even at rapid fire—all A-zone hits at 10 yards. Out of 50 rounds of 115-grain Republic ammunition, there were 2 failures; all 124-grain training ammunition performed well. With 75 rounds of 124+P Federal ammunition, recoil was minimal, and accuracy was on point, especially at 15 yards, demonstrating the comp’s effectiveness.
Overall, I like the comp I will need to train and spend some time to get used to all the little nuances. I will be taking a Runenation class in November, excited to put the comp to the test.
I bought a Canik TTI (has a Comp.) and had 30% Failure to Fire with 115 and 124gr and about 10% with 147gr.
I contacted Canik and they shipped to me a “standard” recoil spring. Replaced spring and 0 Failures in 12 months with any/all weights of ammunition.
Canik stated that the original recoil spring was for “competition” ammo. I looked at all of their marketing info., online and printed, and could not find any warning that the TTI was set up for competition ammunition only.
Comp. for Competiton, Open sights for EDC. Makes for a more difficult draw. KISS.
