This is a Hi-Viz Sight, model RM2006.
HIVIZ(R) Remington ETA "Easy Target Acquisition" Magnetic Shotgun Sight. Fits all Remington shotguns with 9/32" wide ribs. Includes two round Green and two round Red LitePipes" as well as one triangular Green and one triangular Red LitePipes.
Features:
Fits all Remington shotguns with 9/32 wide rib;Three green and three red LitePipes;Round and triangular shape
