BESTSUN Dovetail Weaver Picatinny Rails Adapter Extend 11mm to 20mm Tactical Scope Mount

This piece of crap really doesn't fit well. I tried putting it on my airgun but it doesn't sit flat (horizontally) on the gun. It tilts off to the right. The only reason I can see for this is that it doesn't fit the 11mm dovetail well on the gun. One side of the clamp doesn't have the much-needed sharp edge on it (it's too rounded) to fit properly in the dovetail groove. Or possibly the dimensions are just wrong where the clamp contacts the main picatinny rail. Totally useless and non-useable.

Assuming you’ve stripped the mount down to the barrel mounted dovetail, this adapter will allow you to place a good adapter for a picatiinny rail. It will alllow you to scout scope a Mosin Nagant 91/30 .Avoid the NcStar Scout scope. If you’re serious about accuracy spend the $399 for a Burris Scout scope. The Hi-lux Scount isn’t any better than the NcStar but the Vortex 2-7x32mm Scout won’t disappoint you, but it’s a long scope.Spend the money for the Burris or go with the Vortex. Everything else is a problem waitng to happen.

Worked just right, I am gonna have to order another one. If you want to be able to put a nice scope on a BB gun or a pellet gun this is for you. I have a really nice pellet gun from Remington and wanted to put a good scope on it so I ordered this and it worked great. I took the old cheap scope off and used one with picatinny rail and with this adapter it works fine, the scope is actually too good for this gun , but it works just fine so I think i'll keep it on .

OK for an old air rifle, strong enough for most applications.

Good solid well machined mount

This is ok if you don't care about the scope mounting over and straight center of rifle. What I mean it it will mount off center and tilted, which in my case is not good enough. I am sure I will find some use for it. But I will not recommend this nor will I by again. Also it took forever to even ship total about 4weeks.

I received my Dovetail Weaver Picatinny rail extender and it fits perfect on my Benjamin Trail NP Break Barrel Air Pistol (.177). I have not sighted it in yet but everything fits perfect. I tried another adapter, but it did not work.

Used this on a Henry 22 lever action weaver to convert to picatinny rail in order to mount a scope. I like that the rail is offset because it gives you more flexibility in positioning. Shipping took a few weeks, but if you can wait this is an excellent quality for the price.