If you keep your magazines loaded or use them daily consider replacing the springs annually to preserve flawless magazine function. This spring fits the following 1911 Elite Tactical Wilson Combat magazines 500 500B 500C 500BC.
WILSON COMBAT SPRING/FOLLOWER KIT
UPC : 874218007775
Caliber : 45 ACP
Capacity : 8 ROUNDS
Brand Fit : WILSON
Model Fit : 45 ACP