Core Overview: JK10-21D Sand Stockless MP5K restores the classic compact tactical appearance of MP5K submachine gun. Adopting premium matte sand frosted finish, it delivers authentic outdoor tactical style with a sleek stockless design, high recognizable and perfect for display, shooting and tactical collection. The ultra-compact stockless lightweight body ensures flexible and portable operation, ideal for indoor close combat and narrow-space tactical raids. It supports manual single shot, electric single and full-auto modes. The manual mode provides crisp mechanical decompression feedback, while electric firing delivers stable and sustained firepower with sensitive trigger response and strong close-range suppression. The upgraded reinforced gearbox runs low-noise and smoothly, avoiding jamming and gear damage during high-frequency firing for reliable durability. Made of thickened wear-resistant nylon with matte sand coating, the tightly assembled body is drop and scratch resistant. The large-capacity magazine ensures stable feeding with flat and concentrated trajectory. The built-in safety lock prevents accidental firing for safe parent-child and multiplayer play. The ergonomic non-slip grip ensures flexible and comfortable operation with easy disassembly and maintenance, suitable for daily entertainment, sand stockless tactical collection and compliant tactical play.