Maxx Model Hop Up Chamber M4A- PRO Red gearbox Common Combo is Real Deal

Common Combo is Real Deal AOE Mod Bonded Piston Assembly x FPS Softair Piston Head

Real Deal Stabilizer O rings - FREE

Will not work for any other mosfets

FPS Softair Piston Head Failure

BUILD COMES WITH 1 YEAR WARRANTY  Please do not change any programming settings asides from firing modes such as burst / binary / auto features

Maxx Model Hop Up Chamber M4A- PRO Red gearbox Common Combo is Real DealThis is the newest offering from Maxx Model. The M4A Pro edition is designed for AEGs. 21mm 21. 25mm Nozzles are recommended for this unit. CNC Aluminum Hopup Chamber M4A Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently on Tokyo Marui , including G&G, Kryatc, NOT KWA. Standard M4 M16 AEG series. The Hopup Chamber M4A unit is built with an aluminum Rotary Dial Knob for fine hopup adjustments, the precision