Features: Billet style upper and lower receiver. M-Lok compatible rail. Krytac 30k high torque motor. Defiance flip up front and rear sight. Comes with a 330 round magazine. Integrated FET System. Specifications: Length - 730mm Weight - 2574g Magazine Capacity - 330 Rounds Power Source - Battery Powered Blowback - None Shooting Modes - Semi, Full Auto Hop-up - Adjustable from the breach Magazine Compatibility - Standard M4 AEG magazines. FPS - 380 The face lifted Krytac Trident MK2 CRB is refreshed version of the tried and true Trident MK2 CRB line that came before. One of the most notable differences you will see right away is the slightly redesigned rail system. Other than being M-Lok compatible it comes in a more angular design for a bolder, rougher look. The low profile flip up front and rear sights are Defiance licensed and are unobtrusive. Other than the face lift, the internals are actually the same as the one that came before. The Trident MK2 line boasts some of the best internals out of the box you can find. Internals such as their MOSFET, padded cylinder head, reinforced piston, rotatory hop-up unit, and easy spring change system has been industry leading. About Krytac: Community --- Innovation --- Excellence --- The foundations for which the KRYTAC brand is built upon. The shooting community is expanding every day, with new shooters and new shooting sports rapidly developing. KRYTAC's focus is to cultivate that community with innovative products that lay the foundation of safety, to build shooting skills, and to evolve with the shooter. The KRISS USA's worldwide perspective stimulates innovation in KRYTAC designs to achieve new levels of efficiency, power, ergonomics, and aesthetics in every product. Every process of development is aimed at offering the best possible ownership experience, from beginning to end, KRYTAC strives for excellence. Includes: x1 KRYTAC Trident MK2 CRB AEG (M-LOK) - Combat Grey. x1 330 Rnd Magazine. x1 Picatinny rail section. x1 Defiance flip up front sight. x1 Defiance rear sight x1 Manual.