Krytac Full Metal Trident PDW Airsoft AEG Rifle - DE The Trident PDW is the most compact rifle in the series and is designed for maximum maneuverability and control, in close quarters combat. The full metal AEG features a short 5.5 barrel and a 5 free floating, DEFIANCE TR105, keymod hand guard. The DEFIANCE hand guard features three prongs at the front that can be used to brace the gun against barricades, eliminating the need for an aftermarket barricade stop rail accessory. The aluminum receivers feature a stamped KRYTAC logo and a dull matte black finish. Additional features include an ambidextrous fire selector and a locking bolt that provides easy access to the KRYTAC rotary hop-up system. The KRYTAC rotary hop-up has 15 adjustment settings and a numbered adjustment wheel for a quick reference point to determine how much hop is needed. The futuristic KRYTAC sliding stock is adjustable to two positions and is supported by the enhanced KRYTAC buffer tube to allow space for a wider range of batteries. The PDW utilizes AR/M4 style magazines and sports similar controls for those familiar with the platform. In addition to looking futuristic and functional, the PDW is also a fantastic performer thanks to its gearbox. Internally, the Trident PDW features a reinforced 8mm ball bearing gearbox with integrated MOSFET to regulate electronic signals and to protect the trigger contacts. The corners of the gearbox that surround the cylinder feature a smooth radius, as opposed to a 90 angle, to prevent fracture. Also, the gearbox shell features a small window on the left side where lubrication can be applied directly to the gears or piston, this window is also convenient for inspecting the angle of engagement with the gearbox fully assembled.Additional gearbox features include a modular spring guide system that will allow the spring to be changed without completely disassembling the gearbox. The KRYTAC piston is made of a durable, lightweight, polymer and features 4 metal teeth, with the 2nd to last tooth absent. The Cylinder head is padded with an enlarged rubber bumper to optimize the angle of engagement and to absorb energy form the impact of the piston assembly. The material for the gears have been especially formulated to be very strong, Rockwell test figures on the KRYTAC gears are much higher than industry norms. Turning all of the drive train components is the KRYTAC high torque motor, capable of 30,000 revolutions per minute unloaded. Features: Aluminum alloy receiver 8mm ball bearing bushings Quick change spring system Ambidextrous fire selector Integrated MOSFET Realistic locking bolt and bolt release Adjustable rotary hop-up Defiance TR105 rail system Steel 2-position Krytac wire stock Length:527mm-610mm (20.74" - 24.02") Adjustable Weight:2500g (5.5lbs) Inner Barrel:155mm (6.05mm Diameter) Muzzle Velocity:~323 FPS (Measured with 0.20g BBs) Thread Direction:14mm Negative Gearbox:Ver 2 Full Metal, Fully Upgradeable Motor:Long Type Fire Modes:Semi/Full-Auto, Safety Battery:7.4v 1000mAh Small PEQ Type Li-Po recommended (Battery not included. Wired to the stock with Small Tamiya connector)