E&C SMR MK16 M-LOK 13.5'' M4 AEG DE

Geissele-inspired Super Modular M-LOK rail system delivers professional-grade performance in a compact 13.5" platform. Features a matte-finished full metal receiver with deep-engraved realistic trades for authentic aesthetics. The rotary hop-up system provides precise shot consistency, while the enhanced metal gearbox with 8mm bearing bushings ensures durability under sustained fire. Standard Ver. 2 gearbox design enables quick spring changes in under 10 minutes without full disassembly—ideal for field adjustments and maintenance efficiency.