Battle Arms Development Workhouse AR-15/M4 Threaded Stripped Upper Receiver Anodized Black WH556-URS. Battle Arms Development WH556-URS Workhorse Upper Receiver Aluminum Black Anodiz - Specifications for Battle Arms Development Workhouse AR-15/M4...
Battle Arms Development Workhouse AR-15/M4 Threaded Stripped Upper Receiver Anodized Black WH556-URS. Battle Arms Development WH556-URS Workhorse Upper Receiver Aluminum Black Anodiz - Specifications for Battle Arms Development Workhouse AR-15/M4...