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Handgun Parts Frame Parts Mainspring Parts Mainsprings ISMI 19 LB. S/S SPRING, EACH Support

Achieve maximum reliability and consistency with the ISMI 19 lb. stainless steel mainspring, engineered to aerospace specs for durability and performance.
-10 %

ISMI 19 LB. S/S SPRING, EACH

445105191
Variations
Filters:
Variations:

Variations:

-10 %
Achieve maximum reliability and consistency with the ISMI 19 lb. stainless steel mainspring, engineered to aerospace specs for durability and performance.
1911 MAINSPRING - 19 LB. S/S SPRING, EACH
17.9 GBP 1 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445105191
In stock
17.9 GBP 1 £17.90 * £19.90
-10 %
The ISMI 1911 Mainspring offers maximum durability and reliability, designed to aerospace specs for consistent trigger pull and reliable ignition.
1911 MAINSPRING - 15 LB. C/S SPRING
17.9 GBP 15 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445004014
In stock
17.9 GBP 15 £17.90 * £19.90
-10 %
The ISMI 17 lb. mainspring offers superior durability and consistent trigger pull, engineered from chrome silicon or stainless steel for reliable performance.
1911 MAINSPRING - 17 LB. C/S SPRING
17.9 GBP 2 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445105017
In stock
17.9 GBP 2 £17.90 * £19.90
-10 %
Experience unmatched reliability and consistency with ISMI's 22 lb. 1911 mainspring, crafted from durable chrome silicon or stainless steel for optimal performance.
1911 MAINSPRING - 22 LB. 1911 S/S SPRING, EACH
17.9 GBP 5 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445000023
In stock
17.9 GBP 5 £17.90 * £19.90
Experience unmatched reliability and durability with ISMI's 1911 Mainspring, designed for consistent trigger pull and ignition, crafted to aerospace specs.
1911 MAINSPRING - 19 LB. S/S SPRING, 5-PAK
Not available
Make: 1911 Model: Government, Commander Product no.: 445105195
Not available
34.9 GBP 0 £34.90 *
17.9 17.9 5 GBP
-10 %
MSRP £19.90
17.9 GBP £17.90

Prices inclusive of duty & VAT.

Product no.: 445105191

Mfr. No.: 19MS

CAD designed and built to Aerospace specifications from chrome silicon, corrosion resistant, stainless steel or chrome vanadium for maximum durability, consistency and reliable performance. Built to aerospace specifications; heat treated, shot peened and fully stress relieved to minimize spring set. 1911 AUTO MAINSPRING - Stainless steel (SS) or chrome silicon (CS); wound in the very popular 19 lb. and 17 lb. rate for lighter, consistent trigger pull with reliable ignition.
In stock 1 pcs. in the USA warehouse
3/5 - 2 Customers
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-10 %
MSRP £19.90
£17.90

Prices inclusive of duty & VAT.

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Delivery time approx. 7-14 days.

100-Day Return Policy

Delivery time approx. 7-14 days.

100-Day Return Policy
No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
  • Maximum durability and consistency
  • Reliable performance under stress
  • Improved trigger pull rates
Wish List Ask question
17.9 17.9 5 GBP
Description Specification Customers reviews Accessories

ISMI 19 LB. S/S SPRING, EACH

-10 %
MSRP £19.90
17.9 GBP £17.90

Prices inclusive of duty & VAT.

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10+
-10 %
MSRP £19.90
£17.90

Prices inclusive of duty & VAT.

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10+

Delivery time approx. 7-14 days.

100-Day Return Policy

Description:

Enhance your 1911 with ISMI's top-quality mainspring!

The 1911 MAINSPRING from ISMI is expertly designed for maximum consistency and reliability, making it an essential upgrade for your firearm.

Product Features:

  • Material: Available in chrome silicon or stainless steel for optimal performance.
  • Durability: Built to aerospace specifications, ensuring long-lasting reliability.
  • Performance: Heat treated, shot peened, and fully stress relieved to minimize spring set.
  • Weight Options: Offered in popular 19 lb. and 17 lb. rates for a lighter, consistent trigger pull.

This mainspring is specifically engineered to provide reliable ignition and enhance your shooting experience. Upgrade your 1911 with the ISMI 19 LB. S/S SPRING and enjoy improved performance on the range.

Specifications:

  • Chrome silicon or stainless steel round wire
  • Chrome vanadium flat wire

Invest in quality and ensure your firearm operates at its best with ISMI's 1911 mainspring.



Attributes

  • Model: 
    Commander
    , 
    Government
  • Weapon type: 
    1911
  • Delivery weight: 0.005kg
  • Shipping height: 5mm
  • Shipping width: 81mm
  • Shipping length: 137mm

Item details

Made in USA

Customers reviews

Customer ratings (2)

3 / 5
Not recommended

Brownells USA Too weak... 09/03/2015

this ISMI 15 lb mainspring is so weak cannot ignite the primers…15lb of Wolff is way better and would ignite any primers….I have 3 and its still sitting gathering dust….

Definitely recommended

Brownells USA GOOD BUY! 28/01/2014

I used this in conjuction with an 18.5 lb recoil spring in a High Standard 1911, Also used a Wilson Combat hammer and sear. This mainspring will lighten your trigger pull, seems to be of good quality.

Variations:

-10 %
Achieve maximum reliability and consistency with the ISMI 19 lb. stainless steel mainspring, engineered to aerospace specs for durability and performance.
1911 MAINSPRING - 19 LB. S/S SPRING, EACH
17.9 GBP 1 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445105191
In stock
17.9 GBP 1 £17.90 * £19.90
-10 %
The ISMI 1911 Mainspring offers maximum durability and reliability, designed to aerospace specs for consistent trigger pull and reliable ignition.
1911 MAINSPRING - 15 LB. C/S SPRING
17.9 GBP 15 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445004014
In stock
17.9 GBP 15 £17.90 * £19.90
-10 %
The ISMI 17 lb. mainspring offers superior durability and consistent trigger pull, engineered from chrome silicon or stainless steel for reliable performance.
1911 MAINSPRING - 17 LB. C/S SPRING
17.9 GBP 2 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445105017
In stock
17.9 GBP 2 £17.90 * £19.90
-10 %
Experience unmatched reliability and consistency with ISMI's 22 lb. 1911 mainspring, crafted from durable chrome silicon or stainless steel for optimal performance.
1911 MAINSPRING - 22 LB. 1911 S/S SPRING, EACH
17.9 GBP 5 £17.90 * £19.90
In stock
Make: 1911 Model: Government, Commander Product no.: 445000023
In stock
17.9 GBP 5 £17.90 * £19.90
Experience unmatched reliability and durability with ISMI's 1911 Mainspring, designed for consistent trigger pull and ignition, crafted to aerospace specs.
1911 MAINSPRING - 19 LB. S/S SPRING, 5-PAK
Not available
Make: 1911 Model: Government, Commander Product no.: 445105195
Not available
34.9 GBP 0 £34.90 *

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