Pro Mag Replacement Cap Ring fits PN's 8130, 8140

Replacement black ring for band clamp Pro-Mags.

PART# 8120

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Known simply as "the black ring" this is a replacement spacer that comes on full-size, band clamp Pro-Mags.


BrandPro Mag
Emission Code3
Part Number8120

Service Parts


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.