Core Overview: JK10-21D Black Stockless MP5K restores the classic compact tactical appearance of MP5K submachine gun. Adopting premium matte black finish, it presents authentic military and police tactical style, featuring a sleek stockless design with high recognition, perfect for display, shooting and tactical collection. The ultra-compact stockless lightweight body delivers 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 black 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, stockless tactical collection and compliant tactical play.