1911 Single Stack 10 Round Magazine Springs  .45 - Chrome Silicon

ISMI magazine springs are wound from certified aerospace specification chrome silicon alloy. Post winding procession includes heat treat/stress relieve.

Important Warning: Modification to your firearm may nullify the manufacturers warranty. This product must be installed by a qualified gunsmith. No liability is expressed or implied for damage or injury which may result from improper installation or use of this product.