Hawke Extension Mountingrings "Tal" version (With a height of 50 mm) - These mountingrings are for 1" tubes and has Weaver/Picatinny rails, so they fit on forexample airsoft.
These mountingrings are og a really good quality and is made in aluminium that has been anodized matted black. They have a bit of saftetape inside so that the sights are well protected when using them.