Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Anyone see this fit on a Mossberg 930 SPX mag tube?  Would a tube/barrel clamp be better?
Document: Won't fit my mosseberg 500 cruiser.. It isn't even a big enough ring to fit on the mag tube, and considering that's where I planned to mount it this kit is nothing but a 20 dollar allen wrench to me.
Used this to add a rail to my Stevens 320 for a tactical flashlight. I did have to pull off the barrel to mount on the mag tube (not enough space), but it fits great right behind the cap and barrel slid back over easily.
Worked great on my Mossberg 500 18&#34; short barrel. I found by looking for a rail mount I had a limiation of less than inch to mount one on the magazine tube. I have a 5 shot tube in mine. This one fits perfectly.
I put this on my Mossberg 500 persuader and it lasted about 3 shots. The bolt that holds the rail on the clamp is too short. broke off and pulled the threads out of the base...
I have this on a mossberg and shot a few rounds. It held but I didn't have anything mounted on it at the time. I recently put a light. Lets see how well it holds.
I'm putting this on my Mossberg 500 7+1 to mount my flashlight under the barrel. I was originally going to mount the light to the ATI forend grip but wanted something alittle more stream line. this should do the trick. If its made close to the quality of the NC Star weaver mount I purchased to hold my surefire light, I'm sure it will be fine.
Works just as advertized. works just fine on barrel or buffer loading extension tube. good qualiity and holds tight on barrel with 500 rounds and haven't had to retighten.
This work on a larger diameter object like the shell holder magazine on a shotgun. It's too big to clamp on a barrell
I'm sure it's a good attachment for some applications, but it's too big for a Remington 870 Express 12 gauge barrel.
Fits perfectly with the Polymer Heatshields. Ring mount is thin enough that you can install this WITH the heatshield and have the ability to remove the barrel to clean it. Plus you get two rail lengths, which is a nice option.Very functional, affordable piece!
Answer: yes