- This adapter has a 1/2 x 20 adapter at the end
- Has two holes on top like OEM so you can use original screws and front site.
- Overall length from one end to the other is 3.12 inches
- has groove underneath just like OEM for ease of removing fill cap
- Matte Black Anodize
- Match this up with a .22 Tatsu and you have a nice quiet gun.