Stock OEM GLOCK magazine spring.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Great product works well fast shipping will use again
Standard Glock OEM springs for my G43. Good communication by Taran Tactical Innovations as well as timely shipping. I had the product within a week. I was very pleased.