How a Glock works ( Glock 17 Gen 3 )

Locking the barrel due to its displacement up Lockwork The trigger bar (green part) in contact with the connector (blue part) falls and releases the fire pin (purple part) connector (blue part) offset to return the trigger bar (green part) to its working position Slot in trigger housing (yellow part) directs trigger bar (green part) movements Trigger safety Fire pin safety (blue part) does not allow accidentally tearing fire pin(purple part) to fire Shutter lag indicates that ammunition has run out