Glock G43X 9mm vs Glock G43X MOS 9mm

These are the same pistol apart from the slide cut. The Glock G43X 9mm and the Glock G43X MOS 9mm share a 10-round capacity, a 3.41" barrel, 6.5" overall length, 5.04" height, 1.1" width, a 5.24" sight radius, a 5.4 lb trigger, fixed sights and the same nDLC finish, polymer frame and two magazines. The only spec differences are the optic cut, which the MOS has and the standard G43X does not, a 0.15 oz weight difference in the MOS slide's favor (18.55 oz vs 18.7 oz), and price: MSRP is $538 for the G43X and $582 for the MOS.

Pick the Glock G43X if:

• You carry irons only, in which case the $44 saving ($538 vs $582) buys you nothing you give up
• You want an uncut slide with no cover plate or mounting screws to check
• You want the identical 3.41" barrel, 10+1 capacity and 5.4 lb trigger for less money

Pick the Glock G43X MOS if:

• You intend to mount a red dot now or later, and want the cut from the factory
• You want the option without paying a gunsmith to mill a standard slide
• You are indifferent to the 0.15 oz difference, since dimensions are otherwise identical

Every dimension, the capacity and the trigger are the same, so the whole decision is whether a red dot is in your plans. If it is, the $44 buys the cut; if it is not, the standard G43X is the same gun for less.