There are still some airsoft players that we know of who prefer to use air-cocking/spring airsoft pistols as backup, and some are milsim enthusiasts. One of their preferred pistol is the Beretta MOD 8000 Cougar G Pistol by Tokyo Marui which is a high grade spring airsoft pistol and comes with hop-up and full-sized removeable magazine. The magazine has a capacity of 21 BBs and the slide lock lever acts as safety.

Mach Sakai reviews this pistol and below is the video version: