Good question. The G19M has only 1 timed combat reload in its 46 round course of fire: 7 yard line, 2-reload-5 in 10 seconds. The other is a 3 yard untimed reload at the end of a string of fire. The Glock 19 is seeing a 10% failure rate on the new course of fire, but for other reasons (Accuracy at 25 yards and, particularly with females, a 4 round WHO string at 3 yards).