Replacement AR-15 M4 Enhanced Hammer Spring. The Hammer Spring is made of 17-7 PH Stainless Steel that has been heat treated and stress relieved, passivated, and precision tolerances. The springs are cryogenic processed and moly plated.
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Available options:
943000073
Diameter (in):
Kit:
Make Model Fit:
AR-15.Universal
Model Number:
Gun Part Restrictions:
Yes
Iowa Warehouse
North Carolina Warehouse