Details, The GC16 is a step up from the CM16 series of AEG's giving you better performance and aesthetics. The GC16 Warthog has a Keymod rail system with monolithic top picatinny 20mm rail. For the airsofter who wants to be a class above the beginner, but doesn't want to step up all the way to a Top Tech version, The GC16 is the perfect choice. The GC16 Warthog comes with the new G&G electronic trigger unit. This can be programmed to switch between fully automatic and 3 round burst, simply by holding down the trigger for 10 seconds. The E.T.U. has also been designed to give the player a faster trigger response and to prevent trigger burn out. It also comes with a pre-programmed MOSFET chip to stop over discharge issues. Please note as with all high end AEGs, this does not come with a battery or charger. They can be found in our accessories section. This must be used with an 11.1v Li-Po Battery! You MUST be 18 or over to purchase this. Please note this is a VCRA applicable Realistic Imitation Firearm. You must be UKARA registered (or have a defence under the VCRA) to purchase this as is, Please contact us or state your UKARA registration number in the comments box when you order. If needed we can spray this for you (at an extra cost of £15.00) so that it meets the requirements to allow anyone over 18 to purchase this. Please select this option from the menu above.