This adapter allows for easy mounting of tactical lights and/or lasers on your tactical shotgun. The mount has three standard Picatinny rails positioned at 3, 6, and 9 o'clock which allows for plenty of options when mounting accessories. The mount uses an easy to install clamping system which will not mar extensions, yet is strong and secure. Picatinny rails will accept most scope/light/laser mounting rings. Mounts to most 1 inch diameter magazine extensions with no modifications.