The folding stock on the MP7 permits shoulder firing for better accuracy. The handgun is also ambidextrous, with all controls, including the M16- style cocking handle, safety/selector lever, magazine release, and bolt-catch release accessible by the user’s right and left hand. A new handgun has reignited the debate over which type of bullet is best: small and fast, or big, heavy, and therefore, slower. The MP7 personal defense weapon (PDW) seems to embody the small and fast paradigm. De-vised by Heckler & Koch Inc., (www.heck-lerkoch- usa.com), it fires a 4.6 30-mm round (equivalent to .18 caliber) weighing about 26 grains....