Push slide forward locking the action. Push plunger at forward end of magazine through cap, using it as a lever rotate magazine ¼ turn unlocking it from receiver. Pull magazine forward clear of receiver then again pull slide forward till operating bar clears receiver. Barrel & magazine assembly can then be rotated ¼ turn & pulled forward to disassemble from receiver. Both barrel & magazine have interupted threads which unlock with a ¼ turn.
It goes without saying, be sure gun is empty before starting.