Condition 1 Accessory Ring Cap (ARC) - (NOT COMPATIBLE WITH C1 MAX) - 34mm Black Color:Black The EPC-9 upper receiver is

The EPC-9 upper receiver is the perfect addition to any AR9 build

Ambidextrous Rear Paddle Switches with High and Low Options

INTRA-LOK Mounting System uses the Taper Lock Principle

and a true MIL STD 1913 slot pattern for additional mounting options

Condition 1 Accessory Ring Cap (ARC) - (NOT COMPATIBLE WITH C1 MAX) - 34mm Black Color:Black The EPC-9 upper receiver isThe ARC is a modular replacement ring cap for any Condition One Modular Mount. It allows the user to mount a myriad of accessories fore or aft on their C1 Mounts to include different variants of Laser Range Finder rails or 12 o'clock mounted Red Dot Optics. The C1 ARC allows the accessories to be connected or disconnected without removal of the ARC itself thus maintaining zero of your primary optic. 7075 T6 Aluminum, Mil Spec Type III Hardcoat