I am a single shot fan but a fellow airguner ask me to build him a pistol with a magazine. So I mod a 5 shot magazine I designed a few years ago for QB 78 rifles and convert the single shot pistol into a 5 shot repeater.
The magazine just clamp on the dovetail rail of the pistol and let drop a pellet in the breech each time I rotate the cylinder a click with my thumb. When out of ammo I simply remove the magazine and load it with 5 more pellets or replace it with a loaded one.
Pistol is nearly completed, just need to chronograph it but outside is freezing cold and CO2 is not shooting as hard as it should.