F Strike Industries 15 lb. Reduced Power Recoil Spring Fits GLOCK $5.04 SI-G-RPS-15 show more like this Calculated in Cart Primary Arms F Strike GRPS15 Recoil Spring for Glock Stainless Steel 15 lb MAP SI-G-RPS-15 show more like this Free on Guns, $9.99 Accessories, $14.99 Ammo Tombstone Tactical F Strike Industries Reduced Power Recoil Spring For Glock® - 15 Lb. Reduced Power Recoil Spring For Glock Gen-3 $7.99 SI-G-RPS-15 show more like this $12.50 Brownells