5KU DTK-4 Mock Barrel Extension ( 5KU-288 )
$175 HKD單價 /不可用5KU DTKP Hexagon Barrel Extension Type1
$181 HKD單價 /不可用5KU LAF-24 Muzzle Brake ( 5KU-303 )
$120 HKD單價 /不可用5KU RRD-4C Slim Muzzle Brake ( 322 )
$81 HKD單價 /不可用
5KU DTK-4 Mock Barrel Extension ( 5KU-288 )
5KU DTKP Hexagon Barrel Extension Type1
5KU LAF-24 Muzzle Brake ( 5KU-303 )
5KU RRD-4C Slim Muzzle Brake ( 322 )