LONSEL Dovetail to Picatinny Rail Adapter 11mm Dovetail to 21mm Picatinny Rail Convert Mount - Low Profile Scope Riser Rail Adaptor - Base Mount 3/8" to 7/8" Converter

I bought this adapter so I could mount a Picatinny red dot sight on my pellet pistol, which only came with an 11mm dovetail rail. I wasn't sure what to expect at this price point, but this little adapter exceeded my expectations. Installation was quick and straightforward. It fit the dovetail rail perfectly, tightened down securely, and provided a solid Picatinny platform for my optic. Once everything was mounted, there was no noticeable movement or wobble, and my red dot held zero without any issues. The machining is surprisingly nice for such an inexpensive part. It feels sturdy, the finish looks great, and it doesn't look or feel like a bargain-bin accessory. What impressed me most was the value. For just a few dollars, it completely expanded my mounting options and allowed me to use the optic I already owned instead of buying a different sight. That's a huge upgrade for very little money. If you have a pellet gun, air rifle, or firearm with an 11mm dovetail rail and want to mount Picatinny accessories, this adapter is an easy recommendation. It fit perfectly, worked exactly as advertised, and turned out to be one of the best values I've purchased. Highly recommended!

I used this rail adapter to install a Nikon 3x9x50 scope with Weaver rings onto my Marlin, Model 60, 22LR. The fit was perfect for this unit due to the length and height. It allowed just enough space or height for the large diameter of the 50mm lens while keeping the height above barrel bore at 2” inches. It holds securely onto the small dovetail of the rifle allowing me to maintain MOA as close as I can achieve with 22LR caliber. A great option for the responsible person who wants a setup that doesn’t require gunsmith’s.

Works well on a Winchester 190 to put a small red dot on it. Seems well made and had no problems holding zero.

This was what I needed so I could put a thermal scope on my old 22. Easily attached and seems to hold. I did have to tighten the picatinny side of my thermal when transferring from my AR since this rail seems a little more narrow. I can’t just swap between guns without the Allen wrench.

I have a Citadel 12 Gauge Turkish Warthog Semi-Auto Shotgun with dovetail rails on the top of the receiver. This fit it perfectly. Once tightened, the tap doesn’t move and looks it was made to fit. It is well made, has a great anodized finish without any blemishes. I highly recommend this if you the same shotgun as I do. I am sure it will serve me very well. I plan to mount a red dot on this rail very soon.

Outstanding product. It fit precisely as it should have.

Works as it should.

Perfect fit. Less than 5 minutes to install