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. Features : Designed for GLOCK 19 Gen1-3 Models and Aftermarket Copies Springs Are Made From High-Strength Chrome Silicon Includes Stainless Steel Billet-Machined Non-Captured Guide Rod Kit Includes 11-LB, 13-LB, 15-LB, 18-LB, 20-LB and 22-LB Springs 100% Made in the USA GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.