The AR15 Rifles modular design allows you to easily switch out the upper and change calibers or configurations. Simply push the 2 lower pins out and install the new upper and you are ready to rock & roll! Atlantic Firearms offers a wide variety of AR-15 rifles and AR15 Upper receivers. We carry a varitey of upper receivers in many barrel lengths and rail configurations.
AR15 Bolt Carrier Group 5.56/ 300B.O W/ Charging HandleMisc AR15 & PartsPrice: $99.00View product
Wolf A1 AR15 Upper T91 16"Parts & AccessoriesPrice: $549.00View product
Wolf T91 AR15 Upper 12" SHORTYAR15 RiflesPrice: $549.00Sale: $519.99
AR57 ULT Upper 5.7x28mmParts & AccessoriesPrice: $645.00Sale: $599.00