Wilson Combat 1911 Flat Wire Hammer Spring Compact/Officer, Extra Power 25 lb

Wilson Combat 1911 Hammer Spring Compact/Officer, Reduced Power 21lb~27-OM

Wilson Combat 1911 Hammer Spring, Reduced Power, Compact/Officer's, 21 Lb. 27-OM

Wilson Combat 1911 Firing Pin Return Spring, Extra Power~26

Wilson Combat 1911 Flat Wire Hammer Spring Compact/Officer, Standard Power 23 lb

Wilson Combat 1911 Mainspring Cap Retainer Pin, Compact/Officer's, Blue R16CO

Wilson Combat 1911 Hammer Spring, USGI Style, Full-Size, 23 Lb. R16A