True Precision Recoil Spring Tuning Kit Features The True Precision Recoil Spring Tuning Kit gives Glock 19 Gen 1-3 owners six different spring weights 11 13 15 18 20 and 22 pounds so the recoil impulse can be matched to a specific compensator suppressor or slide configuration rather than relying on a single factory-weight spring. Each spring is manufactured from high-strength chrome-silicon material and is rated to exceed 20 000 compressions giving the shooter a durable long-lasting option that will not degrade quickly under heavy use. A stainless steel billet-machined non-captured guide rod is included in the kit replacing the factory guide rod with a more rigid precisely manufactured part. This level of adjustability lets a shooter fine-tune reliable cycling across varying ammunition pressures and slide weights that come with adding a compensator or suppressor. Because muzzle devices and suppressors change the dynamics of how a pistol s slide cycles having access to multiple spring weights lets a shooter correct for undesired behavior like short-stroking or excessive battering without buying several individual springs separately. The kit is also compatible with Glock Gen 6 pistols and many aftermarket Glock 19 style copies broadening its usefulness beyond a single generation of pistol. Every component in the kit is made in the USA reflecting True Precision s focus on domestic manufacturing and quality control. Shooters running a compensated or suppressed Glock 19 will find this kit a practical way to dial in their setup for maximum reliability. True Precision Recoil Spring Tuning Kit Specifications Manufacturer: True Precision Model: Recoil Spring Tuning Kit Compatible Hosts: Glock 19 Gen1-3 Glock Gen 6 Aftermarket Copies Type: Spring Color: Black Includes: 11 13 15 18 20 22 lb Springs Guide Rod Available At: GrabAGun