MUR: Modular Upper Receiver
Vltor CASV-EL Free-float Handguard, Extended Length, Black
Small Arms & Tactical Equipment, Page 17
CASV-EL-2: CASV Handguard, Extended Length for Carbine Gas System
Vltor VC-A2 Flash Hider (Closed Bottom) – 5.56/.223, 1/2-28 (RH
Vltor MP-1 ModPod – Bipod Leg Set
VLTOR CASV Handguard MLOK - Carbine Extended
VLTOR CASV-EL-2 Carbine Length MLOK Handguard Black (AR-15
VLTOR RE-EBR – Stock Adapter System for SAGE EBR M1A Chassis
VLTOR PCC MUR – Pistol Caliber Upper Receiver