Airtech Studios ICS CXP-MARS PWD9 BEU Battery Extension Unit Ares You cannot use an aftermarket

You cannot use an aftermarket cylinder head with this Action Army Cylinder

This thing is awesome

base plate has also been designed with a ribbed ledge which promotes

Rear or front wiring style for V2 gearboxes

Airtech Studios ICS CXP-MARS PWD9 BEU Battery Extension Unit Ares You cannot use an aftermarketThe Airtech Studios ICS CXP MARS PWD9 BEU Battery Extension Unit is designed to fit on PDW 9mm style AEG guns. May also fit on other ICS PDW rear buffer tubes as well. Very easy to install so you can add longer and bigger batteries in your rear stock buffer area. With it installed, you can use longer 11. 1v batteries in it, with extra room to spare. This is a must have for those that want flexibility with battery space. Can fit up to a Titan 3000 nun