As above, an air logic whisperer .22 silencer. In average / good condition. Someone had cammoed the gun it came off, and it has splotches of green on it.

Fixes to the barrel with a grub screw, and I assume that the cut out in the picture is so that the sight can be screwed back on the barrel once you've fitted it.

This was attached to either a Diana Mod 25 or 27 (the model was obscured by cammo ) and the diameter of where it slips on to the barrel is aprox 15mm.

Pic 1
Pic 2

The price for this little bit of nostalgia, going by the sage advice of Guru Gareth and Guru Muskett , £10 posted.