Guns Modify AEG / Marui MWS GBBR Hopup Tensioner (9 Parameter in 18pcs, Material 80HA) for >=0.35g B

Guns Modify AEG / Marui MWS GBBR Hopup Tensioner (9 Parameter in 18pcs, Material 80HA) for >=0.35g BB Rubber Construction Designed to work with a wide variety of parameters which gives the shooter better control over how you want your hop-up to be set up Each combination is designed to provide ideal shooting consistency for BBs weighted 0.35 grams and above Suitable For Tokyo Marui M4 MWS Series Airsoft Gas Blow Back GBB Rifle Airsoft Guns Include 18 piece