Heat-treated; For RPD builds. With these receivers you need to press in your barrel, modify and fit your bolt/carrier and lower then install the necessary semi auto parts. Semi auto parts are available through Wise Lite Arms: http://www.wlarms.com
Forged 7075T6 made to MIL-SPECS, Hard Coat Anodized Black, Anodized M4 Style Feed Ramp Cuts, Machined T Marks, Complete with Port Door and Forward Assist.Manufactured by DSA - All Parts U.S. Made!
Engraved with the Spartan Lambda Symbol and marked MOLON LABE, meaning "Come and take them!", used through out history to express the determination to not surrender. FFL required for purchase. DSA ZM4 Spartan Series Stripped Lower Receiver.