Sight help please 2240 crosman

[D_H_P]

Crosmans can be a money pit.

Fit a scope?
They do plastic blocks that clamp to the barrel to give you a dovetail fitting. Work OK ish, but very easy to knock the scope off zero.
Fit a steel breach and fit a pistol scope?
Or steel breach, Crosman stock, and something like a Simmons – 1.5-5x32.

Mine has SAK moderator, steel breach Nikko Mountmaster 3-9x40, Crosman Stock, replace trigger spring and add spring guide, polish sears.
Pellet on pellet at 8 yds, very quiet apart from hitting the target, 1/4" group standing, unrested, with a kind of 2 handed pistol grip.

[Biker_Bob]

Drill and tap an M3 hole in the silencer adaptor - screw in an M3 screw and lock it off.
Or even just use a small jubilee clip to attach a bent bit of metal to the body of the silencer adaptor.
Depending on the diameter of your silencer you may need to make the front sight taller than the original and in that case you may need to make a longer rear sight blade to match.

I have done exactly this mod myself - works fine.