Recently put this together. Picked up a Remington 870 Police Magnum. Couldnt find one with walnut AND the tube extension. Heck, finding one with walnut was hard enough to begin with. Beautiful grain on this one. Added a factory Remington extension, and a Spectre gear sling I had from my old shotgun. Thats about as "tactical" as I wanted to get. KISS is the goal here. Unfortunately I realized that as a fightin' gun, it would be much much less effective if it didnt have a way to top off the tube. Added one of these stupid things: Thats the mesa tactical unit. At least it's not plastic. Also did a vang comp safety because I'm a lefty and this is easier to reach And added a stainless follower since the stock one is so dang flimsy. And there ya have it. I plan to take it to Front Sight for a 4 day class this spring. I havent shot it a whole lot, but ran a bunch of loads through it to test patterning. Something strange, I have found that this thing gives some BAD cheek slap. Not sure if it's the way I'm handling it, the shape of the stock, the low height of the bead or what, but I have never experienced this with a shotgun. I ran maybe 25 rounds of buck through it at the range and I felt like I got punched in the cheek bone, it hurt for several days.