상품명 : KING ARMS M4 Low-profile Gas Block Type 2
상품명 : Madbull Noveske Rifleworks Adjustable Gas Block for M4/M16
상품명 : PTS Fortis Low Profile Gas Block
상품명 : VFC Gas Cylinder Tuner for SCAR Series AEG/GBB 실린더 튜너
상품명 : VFC Knight's type Gas Block for M4 Series AEG/GBB 나이츠 타입 가스블록