For shooters looking for a drum-format magazine the Promag Standard Pro Drma34 Drum Glk 43 9mm 30rd provides 30-round capacity for 9mm. It features DuPont Zytel Polymer construction. It is intended for Glock G43 compatibility.It is a practical option for adding a spare or alternate-capacity magazine to a compatible firearm setup.Caliber: 9mmCapacity: 30 roundsMaterial: DuPont Zytel PolymerFit: Glock G43