|After seeing the ad here @ CTD, I picked it up to mount on a Remington 870 Express, between the barrel and tube extension. Solid, light weight, and very well made product. Not only does the box have the Allen wrench, but it has three screw length sets included.
I didn't mount this as pictured because it moved around on me. When installing, I picked the screws I needed and mounted it between the barrel and mag extension. Walked the screws down evenly, checking for TQ and DC, then tightened in a cross pattern. It's Aluminum, so don't over tighten the screws.
With this product you CAN'T LOSE!!|