ArizonaPatriot

Hey, I'm glad I found this Page/Group. Thanks for having me. I'm relatively new to AR building (assembling) and have only built 1 AR15 in 6.5 Grendel so far. It really kicks ass and I love it. I am in the Process of my first AR10 build in a 6.5 Creedmoor. I am hopeing to fine some good advice on parts suppliers and on the subtle differences in the Platforms. My first question right out of the gate is this; Are the lower parts kits interchangeable?