Shotgun mount - LaserLyte Shotgun Tri-Rail Mounting System Magazine Tube ADP-TRIR-140

Put it on a Remington 870 mag. ext. tube. However, I had to tighten the allen head screws to the degree that it stripped the heads of the two screws just as it tighened up around the mag. tube. So, when it came time to clean the gun I had to cut the screws off w/ a dremell tool to remove the tri-rail. It does what it says it will do, hold attachments. Their are better and more user friendly products out there. You get what you pay for.
Pros: provides rails to your shotgun
Cons: not the best quality

This review was written in the old system and had content requirements that are different than reviews written today.