Picatinny Rail for attaching a laser illuminator, etc., to the front of the RD/RDF series of mounts without obscuring the line of sight.

Rail: 80 mm/3.15″
Length: 96 mm/3.78″ (from front of mount)
OAL: 121 mm/4.76″
Optical Axis: 40.6 mm/1.598″
Weight: 28 g/1 oz

Note: Includes M5 Torx 20 screw