The Marines just spent $22M on some new 45's.
But after 12k rounds through them, it seems it's back to the drawing board.
Not pretty.
Guns 11, 12, 14 and 15 (1-10 were not fire tested) fired 12,000 rounds before being deadlined due to visible safety-critical cracks found in the slides. Each slide had cracks in the same location, but they varied in size.