Pull back on the charging handle. With the charging handle (and bolt) pulled back to the rear, engage the bolt catch to lock the bolt to the rear. Return the charging handle back to the forward position. Insert a magazine into the magazine well, ensuring it's seated and secure. Press the bolt release to send the bolt forward. Tap the forward assist a couple times to ensure the bolt is fully forward.
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.
The AR15 series
Its ar15
Yes