We get to see again the KSC - U.S. 9mm M9 System7 HW in this review by Mach Sakai and it's not a new product at all. The KSC Heavy Weight M9 offers a realistic shooting experience with its HW plastic slide and frame whilst The SYSTEM7 GBB unit delivers a powerful and satisfying recoil. This model is can be a good item for collectors and gamers alike, featuring accurate shooting, fast and strong blowback, and authentic markings.