Editing M16 rifle (section)

===M234 launcher===
[[File:M234.png|thumb|upright=1.3|left|M234 riot control launcher]]
The [[M234 launcher|M234 riot control launcher]] is an M16-series rifle attachment firing an [[5.56×45mm NATO#Military cartridges|M755 blank round]]. The M234 mounts on the muzzle, bayonet lug, and front sight post of the M16. It fires either the M734 64&nbsp;mm kinetic riot control or the M742 64&nbsp;mm CSI riot control ring airfoil projectiles. The latter produces a 4 to 5-foot [[tear gas]] cloud on impact. The main advantage to using [[ring airfoil projectile]]s is that their design does not allow them to be thrown back by rioters with any real effect. The M234 is no longer used by U.S. forces. It has been replaced by the M203 grenade launcher and [[nonlethal]] ammunition.