Glock G43X MOS 9mm vs Glock G45 Gen5 MOS 9mm

Both are optic-ready Glocks with fixed sights, trigger safeties and nDLC-finished steel slides, so the whole question is how much gun you carry. The Glock G45 Gen5 MOS 9mm holds 17 rounds to the Glock G43X MOS 9mm's 10, with a 0.61" longer barrel (4.02" vs 3.41"), a 0.94" longer sight radius (6.18" vs 5.24") and three magazines to the G43X's two. The G43X MOS is 5.97 oz lighter (18.55 oz vs 24.52 oz), 0.24" narrower (1.1" vs 1.34"), 0.94" shorter overall (6.5" vs 7.44") and 0.43" lower (5.04" vs 5.47"), with a 0.4 lb lighter listed trigger (5.4 lb vs 5.8 lb) and a $163.00 lower MSRP ($582.00 vs $745.00).

Pick the Glock G43X MOS if:

• You want the slimmest daily carry option: 1.1" wide and 18.55 oz
• It is 0.94" shorter and 0.43" lower, which is what hides under a shirt
• MSRP is $163.00 lower ($582.00 vs $745.00)

Pick the Glock G45 Gen5 MOS if:

• You want 17 rounds on board instead of 10
• The 4.02" barrel and 6.18" sight radius give more to shoot with
• Three magazines come in the box rather than two

Same optic cut, same controls, same sight setup — the difference is seven rounds and 5.97 oz. Carry comfort points to the G43X MOS; capacity and shootability point to the G45.