ISMI Spring Kit Standard, ISMI Spring Kit Compact
ISMI Spring Kit – Glock Large Frame

ISMI Spring Kit – Glock Large Frame

$19.99

COMPATIBILITY: GLOCK® 17/ 17L/ 20/ 22/ 24/ 31/ 34/ 35

Premium ISMI recoil springs are manufactured from certified Aerospace specified materials and employs ISO 9002 quality control standards.

(10 customer reviews)
IN STOCK: Ships within 2-3 business days

COMPATIBILITY: GLOCK® 17/ 17L/ 20/ 22/ 24/ 31/ 34/ 35

Premium ISMI recoil springs are manufactured from certified Aerospace specified materials and employs ISO 9002 quality control standards.

ISMI flat recoil springs are heated treated, shot peened and stress relieved after winding to enhance their performance and durability. These features are crucial to making ISMI the best direct replacement for Glock factory OEM springs.

Compatible with our Stainless Steel Fluted Guide Rods -Standard

Includes 3 Color Coded Springs: 

  • 1- Recoil Spring 17lb (Blue-Factory/OEM Spring)
  • 1- Recoil Spring 15lb (Red)
  • 1- Recoil Spring 13lb (Yellow)

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10 reviews for ISMI Spring Kit – Glock Large Frame

  1. Steve Larson (verified owner)

    Good quality products . Bought guide rod , springs and a barrel. Only 100 rounds so far but cycles great.

  2. William F.

    As always great!

  3. Blaze B.

    Best aftermarket springs you can buy!

  4. Hank T.

    Perfect pairing with SS Fluted Guide Rod (standard frame size). Easy installation.

  5. Erik R.

    These came in color coded and very easy to use/install.

  6. Justin B.

    Haven’t shot with these pieces installed, but the look and fitment are great. Also makes the action on the pistol better than having stock plastic guide rod and stock spring

  7. Ronald G.

    Ordering was pain free and received it faster than anticipated! Looks amazing in my Norsso Slide and works smooth as silk! Blacklist always Rocks it!

  8. Chad A.

    Awesome!!! The lead time was faster than expected and product quality is top notch!

  9. christopher m.

    Great quality and fast shipping. Thank You

  10. Tristen A.

    Perfect to have options when tuning! Work great with the fluted guide rod