=== 英文介绍 ===

Product Name: Sijun 89-4 Black – MCX Fire Control Version 4.0 Tactical Soft Dart Blaster

Model: Sijun 89-4 Black – MCX Fire Control Version 4.0

Core Overview: Precisely replicated from SIG MCX Virtus, inheriting its short-stroke piston system, with military-grade matte black finish and MCX modular features. Equipped with 4.0 full-metal fire control gearbox and high-hardness metal gears, core upgraded tactical fire control system (referencing XM157 design), optimizing transmission and air tightness, improving automatic accuracy and stability, supporting three modes and full functions. Standard 9-inch M-LOK handguard, folding stock and metal sights, compatible with AR magazines, with controllable real recoil—top choice for premium play, competition and collection.

Key Features: Matte black body highly restores MCX shape, core components full metal, steel liners on upper receiver key parts for longer service life. Equipped with exclusive 4.0 fire control system to optimize accuracy, paired with 13:1 high-torque gear set for smooth operation. Bilateral controls and blowback design for realistic handling, M-LOK rail highly extensible, Magpul magazine smooth-feeding and AR-compatible. Suitable for ages 14+ (adult supervision), balancing realism, performance and safety.

Applications: Premium play, military collection, outdoor WAR GAME, indoor CQB, etc. Relying on 4.0 fire control and full-metal gearbox advantages, suitable for tactical simulation, precision shooting, movie props and cosplay, applicable to close-quarters and special tactical scenarios—top choice for MCX and AR enthusiasts.