The ICS Transform4 is the latest in electric blowback technology. ICS has designed a new blowback system that is more durable and easy to maintain than a traditional EBB. This new blowback system stems from their new gearbox design. Like many ICS AEGs, this gearbox is split for easy maintenance and quick spring changes. The blowback mechanism is built into the top of the gearbox and is operated by a lever that attaches to the top of the piston. This produces a durable and reliable blowback system which adds realism when firing this fine AEG. In their performance testing ICS was able to fire over 100,000 rounds with no noticeable wear and tear on the gearbox in this EBB AEG. The fire selector on this AEG also functions as a spring de-tensioner. When the fire selector is set to the safe position it also releases the tension on the motor, increasing the longevity of the gun. Not only does this AEG sport a new blowback system, it has many other notable features which enhance the functionality and aesthetics of the weapon. The most noticeable is the CXP-UK1 Key Mod rail system. This free-float rail system is both lightweight and modular. The included rails can be installed in any of the slots found on the bottom and sides of the RIS handguard, allowing user customization to accommodate any desired accessories. The CXP-UK1 rail system is made to the same specifications as real firearms. A quick detach sling point is also built into the RIS (QD sling point not included). The new ICS MTR stock is adjustable to six positions for the user's comfort and stability. The included magazine is an ICS TMAG which provides the user with high, medium, and low capacity options. It also has a side window which indicate how much ammo is left in the magazine. Also included are the ICX CXP style flip up sights. The CXP sights are very easy to operate and can easily be deployed or folded down when necessary. Battery and charger sold separately.