Noun
M16 (plural M16s)
Alternative form of M-16
60 percent of M16 users offered recommendations for improvements. Source: Internet
After modifications (most notably, the charging handle was re-located from under the carrying handle like AR-10 to the rear of the receiver), the new redesigned rifle was subsequently adopted as the M16 Rifle and went into production in March 1964. Source: Internet
As long as the upper and lower receivers are tight and the trigger is halfway decent, the M16 is capable of MOA accuracy, whereas a typical AK will produce 5 to 6 MOA at best. Source: Internet
Apparently it is superior to the standard M855 round when fired from an M4 or M16 rifle, increasing accuracy from 3–5 minutes of angle to 2 minute of angle. Source: Internet
As a result, the design was split into two variants: the Air Force's M16 without the forward assist, and the XM16E1 with the forward assist for the other service branches. Source: Internet
Bayonet The M16 is 44.25 inches (1124mm) long with an M7 bayonet attached. Source: Internet