The M17/M18 Cartridge Type is best described as which magazine type?

• A. 17 or 21 round staggered box magazine
• B. 20 round staggered box magazine
• C. 30 round box magazine
• D. 40 round drum

Answer: (A)

Magazines for the M17/M18 are detachable box magazines that feed 9x19mm rounds from a staggered double-stack arrangement. The standard capacity is 17 rounds, with an extended 21-round version also available, both using the same basic staggered box design. The staggered layout lets more rounds fit in a compact grip by offsetting the rounds rather than stacking them in a single straight column. Other configurations like a 20-round straight box, a 30-round box, or a 40-round drum don’t describe the typical M17/M18 magazines, which are built around the 17- or 21-round staggered box format.