will this fit a 20ga shotgun barrel?
1006070
Yes, but the rail will only fit at the 6 o'o'clock position. You may want to champher the inside edges that contact the magazine tube, for a better fit.
1006071
It fit nicely on a 5/8" OD barrel. It won't fit on anything larger than that.
1819305
The stock kit I bought was for a 12 gauge. I believe the 20 gauge receiver is slightly smaller. I would get one that says it fits an 870 20 gauge. Hogue makes one specifically for the 20 guage but, their website has a "pre-order" button rather than "add to cart". Also, they charge more than Amazon.
1090593
I can't say a 100%. Just from looking at it I believe it would fit most any pump action shotgun provided there is a place for the mount to fit. I've been happy with mine so far.
2165683
I bought it for my Ruger 10-22 rifle---fairly universal for a normal sized rifle. I'd say your question depends on the size of your 20mm barrel --- sounds like this Harris product might be a bit small for that size of gun. You'd have to contact the Harris company to be sure.
118650
Not familiar with the specific airsoft gun, but my 20 gauge has a relatively slender stock and this fits fine on it. As mentioned in other answers, if your airsoft gun is realistically sized, you shouldn't have a problem.
1963632
I ordered it for my Remington 870 12 gauge. Caliber wasn't specified so I would think you'd be fine using it for a 20.
1392487
It should fit easily. I have one on my Mossberg 590 and one on a 20 gauge single shot that my son had shorten the barrel to 18.5 on and it popped on both of them and stays put. Instructions come with it but basically you line it up with the bead site if it has one and the pop that end on the barrel and then pop the rest of it down on the barrel. I had to take the one off my 590 and adjust it to get it to fit up to the bead site so they can be removed and put back on without issues. They are great outside in good light, nice in low light situations and don't work in no light situations.
2213766
I have a 20 inch shotgun barrel. It fits the scabbard well with some room in the bottom, but I don't know if it will handle a 28 inch barrel because I don't have it.
1588457
My guess would be "no". I mounted this on a mossberg 590 12 guage. the 590 has thicker walls on both the barrel and shell tube, and it was a perfect fit, so it will likely be a bit large on a 20 guage. However, I highly recommend this product, so I would buy it and maybe roll some pipe tape over the tube to thicken it up. Worst case - it doesn't tighten enough, just return it. Amazon is good about things like this.
164984
It should fit, but likely will stick out past the barrel, it does on my G23 and XD-40.
780117
I don't think so, made for 12ga. problem being distance between barrel and magazine tube.
438938
Description says 21mm. I've got mine mounted on a 10/22 for a light. Don't know the diameter of the barrel. The mounting screws are longer than they need to be for my rifle. I'll bet it will fit yours. If you buy it through Amazon, you can't beat their return policy Give it a try.
1447251
The only thing that matters here is the outer diameter of the barrel. So, yes, it will fit pretty much any 12 gauge shotgun barrel, unless your shotgun barrel is some strange shape. This product separates in half completely, and I recommend you do this during the install. I also recommend that you use some oil on a cloth to wipe down that part of the barrel before you tighten down the screws.
935208
not sure about 20 gauge ? it does come with many shims for different size barrels
1571232
If this helps I've used it on a 20 gauge 18.5 870 Remington it works fine shouldn't be much different.
1669947
As far as fit it's an elastic band so it will fit pretty much any buttstock. It should hold the 20 gauge shells just fine because once again the ammo bands are just elastic. Obviously it won't carry any 22 rounds for you hope that helps
2115870
No it will not. It fits most standard rifle barrels. But bull-barrels or shotgun barrels, it is too small to fit.