AR 10 ! all ar15 parts interchange pistol grip,slings, stock etc makes it more ver. and there is nothing like the buffer system on the ar type they are the best weaopons in the world ,,,
also the armalite service is simply rated #1 did i mention the fact that you can change calibers in about 10 seconds .243to308 and back also go from carbine to 20" barrel in same time and the20 mag conversions are only 30.00 from armalite and a rebuild kit finishes them off...50.00 bucks not bad !
LIFETIME WARRANTY !!!! LIFETIME WARRANTY !!