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