Premium Spring Kit for your 19 Gen 6. Get the most out of your compensated or suppressed Glock 19 Gen 6 and copies (also compatible with Glock Gen 1-3 pistols), with this recoil spring tuning kit from True Precision. Built from high-strength chrome-silicon, these springs offer consistent, long-lasting performance in excess of 20,000 compressions each. This kit includes multiple spring weights to help you fine-tune your setup for reliable cycling and reduced recoil in nearly every situation. Especially helpful with varying slide weights, ammo choices, and muzzle devices.