BCA Service HPA Engine Installation (Wolverine / Polarstar / Redline) Gas Pistols Compatibility: For WE M4

Compatibility: For WE M4

Ares Amoeba Striker Sniper Rifle

For better gas flow and efficiency

For Tokyo Marui Hi-Capa Series Airsoft Gas Blow Black GBB Pistol

Flip-up lens covers (removable)

BCA Service HPA Engine Installation (Wolverine / Polarstar / Redline) Gas Pistols Compatibility: For WE M4Converting your AEG to HPA has many advantages, from easy power adjustment to precise airflow adjustments and often (but not always) on the fly system changes without having to crack open your gearbox. If converting your AEG into your dream HPA setup is daunting, and you want to know that its done right, BBA will do the install and tuning for you. Services we offer: Installation and shimming of engine in gearbox Printing and installation of HPA