Maxim Defense Industries OpticsPlanet Exclusive RDB Roller Delay Blowback System Carbine Buffer Hardened Tool Steel MXM-47839. One of the main benefits of the RDB system is its ability to install on Mil-Spec AR-15/AR-9 easily. Our RDB system...
Maxim Defense Industries OpticsPlanet Exclusive RDB Roller Delay Blowback System Carbine Buffer Hardened Tool Steel MXM-47839. One of the main benefits of the RDB system is its ability to install on Mil-Spec AR-15/AR-9 easily. Our RDB system...