AR-15 Builder Supply - HOURS: BY APPOINTMENT ONLY Call, Email or Text for Appointments - AR-15 Kits & Builder Tutorials - We stock AR-15 Upper & Lower Receivers, Barrels, Stocks, Pistol Stabilizers, Gas Blocks/Tubes, Parts Kits and more. - We normally stock AR-15 parts from Aero Precision, Spikes Tactical, Anderson Manufacturing, Ballistic Advantage, Bear Creek Arsenal , Magpul, Palmetto State Armory and More. - See our website for local inventory.