애플 타입 슬링 고리-GBB(AEG 사용 가능) ₩17,000
Crusader Lower Receiver End Sling Mount for Umarex / VFC HK417 AEG & GBB ₩15,000
WE GBB M4 Low Receiver-Marking ₩115,000
WE GBB M4 Low Receiver ₩85,000
애플 타입 GBB 슬링고리 ₩15,000
Crusader Steel Outer Barrel for Umarex / VFC UMP GBB ₩49,500
WA Steel Sling Adaptor-3Hole ₩18,000