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what recommended ammo grain / load? 115 gr won't cycle even with 13lb spring. — 1 Answer

by Nestor, from CA, United States Asked on December 9, 2023

Name Killer Innovations Velocity Glock 17/19 Gen 3 Barrel Compensator (4.7)
$109.99 $104.49 Save $5.50
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Answered by Killer Innovations, Manufacturer from WA, United States, on August 06, 2025

We have a helpful video available that goes over some common issues when running a compensator https://www.youtube.com/watch?v=1ETVVw81AqI
A compensator is designed to take the gases released from firing ammunition and redirect them in a way that is more advantageous to the shooter – resulting in flatter shooting and faster follow up. However, the compensator robs momentum from the slide action during this procedure. Always be sure to run high quality ammunition to ensure enough cycling power on your firearm with compensation.
We recommend using American Eagle 115 grain ball, or Herters Ammunition.
Ensure your barrel and slide are fully broken in before attempting to run a compensator.

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