Originally Posted by L473ncy
Pretty much anywhere on Kwong Wa Street.
Yeah. It's the most concentrated airsoft+military items area, with many shops. Prepare to spend a whole day there. Business hours are noon to 9pm. Sunday is a bit quiet as many shops closed for games.
Take the subway (MTR) to Kowloon side and get off at Mongkok station, read the map at the station for the correct exit.