Mr. Scales said the M4’s basic shortfall is that it uses gas, or direct, impingement to extract and expel its shells as opposed to a piston system. A piston firing mechanism is in the prolific ...

Infantry and other combat arms typically carry an M4 with a series of authorized add-ons, including Aimpoint red dot sights, Trijicon ACOG fixed-power rifle scopes, foregrips, laser designators ...

the civilian-version M4 (18.5” barrel and reduced magazine capacity) is chosen today by millions as their all-around shotgun for home defense or 3-gun competition. In our latest NRA Gun of the ...

The M4 carbine, which was among guns found at businessman Jimmy Wangigi's home on Tuesday, is a shorter and lighter variant of the M16A2 assault rifle.According to Wikipedia, the M4 is a 5.56× ...

Infantry and other combat arms typically carry an M4 with a series of authorized add-ons, including Aimpoint red dot sights, Trijicon ACOG fixed-power rifle scopes, foregrips, laser designators ...