Heckler & Koch’s MP7 PDW is a somewhat controversial weapon. Its 4.6x30mm projectile is very small, and the ballistics on the round appear to be somewhat sketchy. The new weapon looks like it would be a lot of fun to shoot, but going up against enemy forces on an overseas mission is probably not the best place to discover its effectiveness (or lack thereof).
Since the weapon appears to be intended as a stand-off weapon for aircrews and mechanized personnel, and not a primary CQB weapon for special operations teams, the MP7 PDW may have a solid future. There’s one more problem that we can foresee in terms of battlefield deployment, besides terminal effect of the new cartridge, and that’s this: since the 4.6x30mm round is a proprietary cartridge, troops could very quickly run into supply problems.
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