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8.
M4
The M4 is a modular assault rifle based on the AR-15.
Fires 5.56 NATO rounds, and uses STANAG magazines.

Two models:
M4, shoots in 3-round bursts and semi-automatic
M4A1, shoots in fully automatic and semi-automatic

Shares 80% of parts with the M16.

An offshoot of the weapon is the M416, which uses a different firing mechanism.
Squeaker: The M4A1 was used by every American guy in MW2, it must be a real gun.
(Searches on Wikipedia)
Squeaker: OMG, it is! AND IT LOOKS LIKE THE M16 OMG OMG OMG OMG
by Lord of the Chings February 17, 2014
0 0
 
9.
M4
New kids at the school, first years, naive young student that U4s and above may laugh at and bully for their entire first year before they are accepted into the college.

Bottom of the school heirachy, annoying M4s should be bullied in boys case and bitched about in girls houses, until they are properly behaved.

Sucking up to/ making friends with M4s is forbidden in their first weeks at school.
Wow the M4s this year are arrogant, as always.
by EpsomBanter August 29, 2010
3 3
 
10.
m4
One of the worst guns ever used.
Dude1:Look at my m4 it rocks!
Dude2:my ak is better.
Dude1: no its not : <--- sad cause he knows its true.
by The Dude92 May 12, 2009
15 27
 
11.
m4
achieves over 75% commenality with M16A2... but shorter range
by Dean August 04, 2003
14 26
 
12.
m4
Short barreled butt hole blasting machine. Fires the extremely deadly 5.56mm round. Kills motherfuckers dead
"we drove by and hit his ass with the twin m4's, dropped 4 mags into his house and the bitch just strait blew the fuck up, it was crazy shit"
by matt June 20, 2003
27 48
 
13.
M-4
Lighter virtion of the m-16
big shit
by prat October 02, 2003
36 80
 
14.
M4
Members:
Sandrine Tien
Yvonne Ho
Pauline Do
Tiffinie Pham
M4 is awesome.
by Alan Setthaboupha May 04, 2004
12 58