You can buy a plastic m4 or you can buy a metal m4
M16A2 & M16A4 rifles and M4 series carbines.
their both machine guns so yes
The M16. The M16 entered production in 1960. The M4 entered production in 1984, and was an improvement over the earlier XM-177 carbines.
The only actual M4 carbines are manufactured by Colt and companies licensed directly from Colt. The M4 is made in the USA, Georgia, Canada, and Malaysia.
The CAR-15 family of carbines are based on the M116A1 rifle, whereas the M4 is a development of the A2 series rifles. The lineage of the M4 naturally leads back to the CAR-15, but it is not marketed as a CAR-15.
Sig Sauer P228, in 10x22 (.40 S&W) is the standard sidearm. They may also be equipped with M4 carbines.
The M4 in use by the US military is capable of full automatic fire. Since they were made AFTER the May 1986 cutoff date to register, a TRUE M4 may not be owned by a private citizen anywhere in the US- Only those full autos registered by May 1986 can be transferred to a private citizen. However, on an AR platform rifle, the registered part is the lower receiver (or, in the case of Class III weapons, it may be the trigger group itself). So one could purchase a mil-spec M4 upper and put it on a registered Class III lower receiver if they so wished.
If you are referring to the U.S.A. Armies standard weapon for infantry it is/was the range of M16 Assault rifles. Now they are being phased out and replaced with M4 Carbines.
A carbine is simply a shorter version of the long gun. If the long gun was rifled, the carbine version would also be rifled. Examples of well known carbines with rifled barrels include the M1 Carbine of WW 2 and the M4 carbine version of the M16.
The M4 is basically a carbine version of the M16A2 rifle, and was developed both to reflect the development of the M16A2 over the previous M16A1, and to correct deficiencies which had been identified with the XM-177 (which was the carbine variant of the M16A1).General differences between the M4 and M16 include:M4 has a four position collapsible buttstock (vs. the fixed buttstock of the M16)The weight of the buffer is different in the M4 than the M16The M4 has shorter handguardsThe M4 has a shorter gas systemThe M4 has extended feed ramps cut into the upper receiver for ease of chambering rounds.The M4 has a 14.5 inch barrel, vs. the 20 inch barrel of the M16The M4 has an "F" marked front sight base, which is designed to compensate for the difference in sight radius between the M4 and M16The M4 has an indentation in the barrel profile to facilitate the mounting of an M203 grenade launcher.Some people often cite the removable carry handle of the M4 as one difference, but the first production run of M4 carbines had the same fixed carry handle as the M16A2 (I was actually issued one when I was in the FL National Guard).
carbines are triatomic modifications of cabon mainly found in space and comets