Replace both these M4 grub set screws to socket head M4 x 6mm allen, or better yet, Torx head. Those set screws will eventually loosen up if you shoot a lot, and allow that cocking rod to slip and throw your pellet to brass transfer port openings off by allowing your pellet probe to slip towards the rear(that rod is connected to the pellet probe).
You can try tightening those set screws but if you round off the socket you’re going to get teed off and want to punch someone. Change them out now, one at a time, and you’ll never post on here on AGN “ sudden loss of velocity”.
These-
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View attachment 331864 This is a must do for both the wildcat and maverick platforms.
