Glock G19 Gen5 MOS 9mm vs Glock G43X MOS 9mm

Both are striker-fired, optic-ready Glocks with nDLC-finished steel slides, fixed sights, trigger safeties and identical 5.04" heights. Everything else separates them. The Glock G19 Gen5 MOS 9mm is a double-stack at 15 rounds against the Glock G43X MOS 9mm's 10, and it is 0.24" wider (1.34" vs 1.1"), 0.78" longer (7.28" vs 6.5") and 5.26 oz heavier (23.81 oz vs 18.55 oz). The G19's barrel is 0.61" longer (4.02" vs 3.41") with 0.94" more sight radius (6.18" vs 5.24"). The 43X's trigger is listed 0.4 lb lighter (5.4 lb vs 5.8 lb) and its MSRP is $54 below the G19 ($582 vs $636), though the G19 includes three magazines to the 43X's two.

Pick the Glock G19 Gen5 MOS if:

• You want 15 rounds instead of 10 without changing magazines
• The 6.18" sight radius and 4.02" barrel matter for range and home-defense use
• Three included magazines rather than two is worth $54 more at MSRP

Pick the Glock G43X MOS if:

• You carry daily and want 1.1" of width instead of 1.34", and 5.26 oz less on the belt
• The 6.5" overall length conceals better under light clothing than 7.28"
• You want the lighter listed 5.4 lb trigger pull and the $582 MSRP

Both accept an optic out of the box at the same 5.04" grip height, so the choice is purely how much width, length and weight you will carry for five extra rounds and a longer sight radius.