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

Item details

Made in USA