first grab your dremel or saw,a marker,sandpaper and a philipshead screwdriver
first use your screwdriver and unscrew the priming handle.
this should be what you have now,leave the raider and the priming handle piece aside for now
now use your marker and make a little mark at the area similar to the picture's
put this bit on the other piece and use your marker to mark the other piece,then cut it off.
when you're done,you should have this,remember to sand it down!
when you're satisifed with what you have,just screw it on and enjoy!if you want more,fill the deadspace at the bottom with epoxy putty and hit it with a new paintjob.
you should have these two as spare parts and DON'T throw it away,the handle can be used for integrations and screws for replacement of missing screws in some guns.
think you've a much comfortable or cooler one?post it in the comment section :)