Backdraft Phoenix M4 HPA Engine + FCU

The Backdraft Phoenix HPA Engine is shaking up the industry! As the only price-conscious full-feature HPA engine on the market, that is to be expected. Boasting 40+ rps, a psi range of 40 to 130, on the fly fire mode adjustment, all in a low maintenance, high reliability, high performance hpa engine, this HPA engine is absolutely the best bang-bang for your buck!

Contents:

1. ENGINE (WITH NEW ADJUSTABLE SOLENOID)
2. MODULAR FCU
3. M4 TRIGGER BOARD (M4 Style Gearbox)
4. GRIP LENGTH or STOCK LENGTH WIRE HARNESS
5. INNER GRIP LINE WITH BRASS QUICK DISCONNECT