Learn more about the Valken Optima Block M4 Carbines available right now at Airsoft GI... "Control the battlefield with the new Valken Optima BLOCK II M4 Carbine With Valken V12 Engine Airsoft Gun. Each and every V-12 OPTIMA is individually hand built, tuned, and then thoroughly QC checked by Valken's expert techs and R&D staff in Swedesboro, New Jersey to make sure each gun meets the highest of standards. At the heart of this rifle is Valken’s own V-12 HPA system that has been built and tuned to perform! With the V-12 Grip Connect system pre-installed you will never have to worry about damaged or leaking connections for hard heavy use, as well as reduced stress on the engine internally.
The installed V-12 Airsoft Engine is an easy to install, drop-in replacement to standard version 2 gearboxes to convert the standard AEG into an electro-pneumatic rifle powered by high pressure air (HPA). This computer controlled engine is easily programmable to adjust settings such as select fire settings (semi only, auto, burst) and nozzle/valve timing. The airsoft gun features a trigger/LED trigger controlled programming that is tool-less and requires no disassembling. You can custom tune the power of your rifle to suit the field you are playing at with its quick change nozzle system combined with the ability to regulate the PSI on an HPA tank. Additionally, the airsoft gun features a tournament lock-out feature to allow players to cap rounds per second and fire modes to comply with various rule sets and field limits."
