King Arms - 7mm Bearing Set for AEG Ultralight Dry-Fit Package included :

Package included :

Mini rip-stop pattern weave delivers added durability to effectively resist tears in multiple environments

45 Compact Series Airsoft Gas Blow Back Pistol  Included Recoil Spring & Spring Guide with Ball Bearing  Also comes with High Output Valve & Hammer Spring  Essential Kit Set to make a strong recoil on your pistol

G&P M4A1 Taper Metal Body for M4 AEG (Black)  Aluminum Die-Cast Construction  Suitable for Marui M4 / M16 Series Airsoft Rifle  for M4A1 Extended Battery Buttstock (GP416 / GP417 / GP418)  Package Included:  -New Dust Cover Set  -New Bolt Cover  -Metal Hop-Up Set  -Receiver Pin Set  -Forward Assist Knob  -Adaptor

recoil-operated pistol chambered for the

King Arms - 7mm Bearing Set for AEG Ultralight Dry-Fit Package included :King Arms 7mm Bearing Set Full Metal Construction To build a tight & durable gearbox This high quality ball bearing improves the smoothness of the gears which helps to decrease the power consumption of the batteries As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed