3D printed 22 mm (actual dimension 21.3mm) rail  for attaching red dot sights, overall length 50 mm.

This is a new version made of strong plastic reinforced with carbon fibre. As it is only 5 g, it will not add significant weight.

Fixed by a grub screw (included). 

It is not recommended for long or heavy scopes. If extra stability is needed, you can add an extra supporting m4 grub screw (not included) in the threaded hole at the front. 

This rail is a replacement of the rear sight, which has to be removed.

Will suit the Umarex made CP88, Beretta 92 and Colt 1911 CO2 powered guns. 

Note to eBay:
This item is NOT a firearm part or accessory - Please don't end this listing in error.