APFG Original Parts - Rattler GBB HOP Arms Adjuster ( 03-12 )
$31 HKDUnit price /UnavailableBOW MASTER Hop-Up Adjustment Wheel for Umarex / VFC HK53 GBB Airsoft
In stock$123 HKDUnit price /UnavailableDYTAC MWS Hop-Up Chamber Adjuster Complete Set
$428 HKDUnit price /UnavailableVFC Original Parts - 11.5 Hop-Up Adjustment Base for SR16E3 CQB MOD2 GBB Airsoft ( VG22HOP001 )
Low stock$132 HKDUnit price /UnavailableVFC Original Parts - AR / M4 Type GBB 7 Inch Hop-Up Adjustment Assembly V2 ( VG22HOP006 )
In stock$130 HKDUnit price /UnavailableBOW MASTER Hop-Up Adjustment Wheel Set for UMAREX / VFC MP5 GBB Gen.2
Low stock$295 HKDUnit price /Unavailable