ArmaLite AR-10
The ArmaLite AR-10 is a 7 . 62×51mm NATO battle rifle developed by Eugene Stoner in the late 1950s and manufactured by ArmaLite , then a division of the Fairchild Aircraft Corporation . 
<triplet> ArmaLite AR-10 <subj> 7.62×51mm NATO <obj> ammunition <subj> battle rifle <obj> instance of <subj> Eugene Stoner <obj> designed by <subj> ArmaLite <obj> manufacturer