So I have caught the bug. Searched for replicas of air pistol used in competitions. The KSC GP100 is just too expensive for me. The solution? Go for the replica of replica! Here is the Star PSS-300 that I got.
The grip, front and rear sights, trigger etc are all adjustable. For around HKD1000, just can't beat the price.
BTW, the Maruzen APS-3 is very nice too. But again, the price is just out of reach for me... orz