The AR-15 rifle has a fire rate of 800 rounds per minuteand a muzzle velocity of 3,200 feet per second.
No.
The M4 is capable of automatic fire, the AR 15 is not
AR-15 = Semi-Auto civilian rifle M4 = Select Fire Military rifle
AR 15 - semi-automatic only M16 - depending on variant capable of full auto or burst fire. Will also fire semi-auto.
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You need to see a gunsmith. DO NOT FIRE UNTIL YOU SEE A GUNSMITH!!!!!!!!!!!!!!!!!!
The US Army buys the M-16, not the AR-15. Replicas are not firearms and can't fire.
If it is one of the recent Colt .22LR AR15 rifles, then the answer is no - they are completely different internally.
1959
Yes
The US Army presently uses the M4 carbine, a shorter and much modified version of the Armalite AR15.
Colt has not offered a AR15 in 308