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ISMI
1911 MAINSPRING

445000023
Designed For Maximum Consistency & Reliability
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.
SPECS: Chrome silicon or stainless steel round wire, chrome vanadium flat wire.
18.9 48.9 5 GBP
Product no.: 445000023
ISMI 22 LB. 1911 S/S SPRING, EACH
Mfr Part: 22MS 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.
19.9 GBP 6 £19.90 *
Delivery time approx. 7-14 days.
6 pcs. in the USA warehouse
Specs: Make: 1911 Model: Government, Commander

Top takeaways

  1. The 1911 Mainspring by ISMI is designed to aerospace specifications for maximum durability and performance, available in 22 lb. spring rate.
  2. Made from corrosion-resistant materials such as chrome silicon, stainless steel, or chrome vanadium, ensuring long-lasting reliability.
  3. Suitable for 1911 models Government and Commander, the spring is heat treated, shot peened, and stress relieved to minimize spring set.

Attributes

Make: 1911 Model: Commander,Government Delivery weight: 0.005kg Shipping height: 1mm Shipping width: 83mm Shipping length: 146mm

Item details

Made in USA



Product no.: 445004014
ISMI 15 LB. C/S SPRING
Mfr Part: 15MS 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.
18.9 GBP 51 £18.90 *
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Make: 1911 Model: Government, Commander

Top takeaways

  1. The ISMI 1911 Mainspring is crafted from corrosion-resistant materials such as chrome silicon and stainless steel, adhering to Aerospace specifications for durability and performance.
  2. Designed for the 1911 AUTO with specific models including Government and Commander, the mainspring is available in popular 19 lb. and 17 lb. rates for a lighter and consistent trigger pull.
  3. Each spring is heat treated, shot peened, and stress relieved to reduce spring set and ensure maximum reliability.

Attributes

Make: 1911 Model: Commander,Government Delivery weight: 0.005kg Shipping height: 8mm Shipping width: 80mm Shipping length: 134mm

Item details

Made in USA

Product no.: 445105017
ISMI 17 LB. C/S SPRING
Mfr Part: 17MS 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.
19.9 GBP 17 £19.90 *
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Make: 1911 Model: Government, Commander

Top takeaways

  1. The 1911 MAINSPRING by ISMI is made from high-quality materials like chrome silicon, stainless steel, or chrome vanadium, ensuring durability and performance.
  2. Designed to aerospace specifications, the spring is heat treated, shot peened, and stress relieved to reduce spring set and provide a lighter, consistent trigger pull.
  3. It is available in 17 lb. and 19 lb. rates and fits 1911 model handguns in both Government and Commander sizes.

Attributes

Make: 1911 Model: Commander,Government Delivery weight: 0.005kg Shipping height: 1mm Shipping width: 83mm Shipping length: 146mm

Item details

Made in USA

Product no.: 445105191
ISMI 19 LB. S/S SPRING, EACH
Mfr Part: 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.
18.9 GBP 5 £18.90 *
Delivery time approx. 7-14 days.
5 pcs. in the USA warehouse
Specs: Make: 1911 Model: Government, Commander

Top takeaways

  1. The ISMI 1911 mainspring is made from high-quality materials like chrome silicon or stainless steel to ensure durability and performance.
  2. Designed to aerospace specifications, the spring is heat treated, shot peened, and stress relieved to minimize spring set and maintain consistency.
  3. Available in a 19 lb. weight, this mainspring provides a lighter and consistent trigger pull for 1911 models Government and Commander.

Attributes

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

Item details

Made in USA

Product no.: 445105195
ISMI 19 LB. S/S SPRING, 5-PAK
Mfr Part: 19MS5 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.
48.9 GBP 2 £48.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Make: 1911 Model: Government, Commander

Top takeaways

  1. The 1911 MAINSPRING by ISMI is made from high-quality materials like chrome silicon, stainless steel, or chrome vanadium, ensuring durability and performance.
  2. Designed to aerospace specifications, these mainsprings are heat treated, shot peened, and stress relieved to reduce spring set and maintain consistency.
  3. Available in 19 lb. and 17 lb. rates, these mainsprings are suitable for the 1911 models Government and Commander, providing a lighter and consistent trigger pull.

Attributes

Make: 1911 Model: Commander,Government Delivery weight: 0.018kg Shipping height: 1mm Shipping width: 83mm Shipping length: 146mm

Item details

Made in USA


Upgrade your 1911 with the ISMI 22 lb. mainspring for reliable performance and durability. 💪 Perfect for Government and Commander models!

Designed For Maximum Consistency & Reliability
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.
SPECS: Chrome silicon or stainless steel round wire, chrome vanadium flat wire.
0
Reordered
£33.90
4
In stock
£19.90
4.1
Reordered
£45.90 £43.90 - £104.90
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