ISMI Glock 19 Gen 5 Recoil Spring for Heavyweight Guide Rods

Designed to fit Glock Gen 5 Models: G19, G19X, G23, G32, G49.

Fine-tune your Glock 19 Gen 5’s recoil performance with ISMI premium flat wire recoil springs, engineered specifically to pair with NDZ Heavyweight Guide Rods. Crafted from high-grade chrome silicon, these springs outlast traditional music wire by up to 10x, offering exceptional consistency and long-term durability under heavy cycling. Each spring is heat treated, shot peened, and stress relieved for unmatched reliability and smoother slide operation.

Choose from 13 lb., 15 lb., 18 lb., or 20 lb. spring weights to tailor your setup for target loads, carry ammo, or competition. For complete tuning flexibility, grab the Tuner Pack which includes all four spring weights in one bundle. Get yours at NDZ Performance today!

Features:

• Designed for NDZ heavyweight Guide Rods on Glock 19 Gen 5.
• Available in 13 lb., 15 lb., 18 lb., and 20 lb. weights.
• Tuner Pack includes all spring weights for custom tuning.
• Chrome silicon construction—10x longer life than standard springs.
• Heat treated, shot peened, and stress relieved.
• Made in the USA.

See our Glock 19 Heavyweight Guide Rods here