The M16 / AR15 family of weapons (newest designation - M-4) have been the choice of every branch of the US Military since the mid '60s. What more can you say? Yes, they are very good weapons. They're more refined, modern, and accurate than their (Chi-Com, Russian, Middle-East, North African, South American, etc) counterpart, the AK47 (more recently the AK74). But a lot of people (on Earth) feel the AK is slightly more reliable and fool-proof. It's a classic "Chevy vs Ford" argument. Nobody will everwin the argument, and very few will ever change their minds. :/ IceRail
AR15.com has a good listing.
Try AR15.com Try AR15.com
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
By it's serial number. Go to www.proofhouse.com and under 'long rifles' listing look for AR15 Sporter
Depends on model.
@ 40 inches.
Its ar15
Yes