This compact rail system from Defender Tactical offers two, 4-slot picatinny rails for Mossberg 500/Maverick 88 12-gauge firearms.  The Dual Rail is machined from solid 6061-T6 billet aluminum and is hard-coat anodized in Black for increased durability.  A color-matched swivel screw and nylon washer are provided to easily attach the system over the Takedown Screw for a simple 30-second installation.

Fits most Mossberg 500/Maverick 88 series firearms with a drilled and tapped Takedown Screw, as shown in the picture below.

*Optics Shown Not Included*