Baker Northrop

The AR-15 is a lightweight, air-cooled, magazine fed, autoloading, centerfire rifle. The http://www.ar15forsale.com original ArmaLite/Colt AR-15 was a selective-fire norm submitted for consideration as a fighting infantry rifle, and is distinguished from later civilian-model AR-15 and AR-15A2 rifles marketed by Colt Firearms.

The magazine is not detachable, so to load the rifle the shooter must pull the astern takedown pin, hinge the upper receiver on the front takedown pin, and load the now exposed newsletter either with a stripper clip or by hand, then close. Popular lower receivers for this function are manufactured by Stag Arms, Fulton Armory, Dane Armory, Mega, and Ameetec.