553
Reinforced Hammer Spring for GHK Series
$8.00
Reinforced Hammer Spring for GHK Series - Better flexbility. - To increase the muzzle velocity and reoil reaction slightly. Test Data : Before replacement :110m/s After replacement, increase the muzzle velocity, and the data is about 120m/s..
Maple Leaf Hop-Up for GHK 553 series
$60.00
Maple Leaf Hop-Up for GHK 553 Series DIY ability required ! ※Correct installation method: Remove the barrel first , and then installing the HOP-UP set. Final install the barrel back.※ - Material: Nylon fiber, rubbe..