Glock 18 vs Glock 43X

1986–Present

2019–Present

~250,000 estimated (including all variants)

Unknown (estimated hundreds of thousands to millions)

204 mm (8.03 in) standard, 236 mm (9.29 in) on 18C model

165 mm (6.5 in)

102 mm (4.02 in) standard, 135 mm (5.31 in) on 18C model

87 mm (3.41 in)

625 g (1.38 lb) empty (standard), 730 g (1.61 lb) with 33‑round magazine

529 g (18.66 oz) with empty magazine

33 rounds standard, 50‑round drum, 10‑round compact magazines available

10 rounds standard (flush-fit); optional 15-round extended magazines (aftermarket)

Short recoil, locked breech, striker‑fired Safe Action system

Short-recoil, locked breech; tilting barrel

Safe Action striker‑fire with slide‑mounted fire selector (semi‑auto / fully‑auto)

Safe Action striker-fired with trigger safety, drop safety, and firing pin safety

Fixed polymer rear notch and front post; optional tritium night sights and aftermarket rail‑mounted optics

Polymer fixed sights (front dot, rear notch); optional tritium night sights or MOS red-dot ready