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ISMI
1911 MAINSPRING

445004014
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.: 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
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
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
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

Upgrade your 1911 with the ISMI 15 lb. mainspring for reliable performance and a lighter trigger pull. 💪 Built to aerospace specs!

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.
4
In stock
£19.90
0
Reordered
£33.90
3.7
In stock
£38.90 £12.90 - £38.90
2
In stock
£31.90 £31.90 - £35.90
4.7
In stock
£18.90 £18.90 - £69.90
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