E&C URG-I MK4 M-LOK 9.5''M4 AEG BK

The E&C URG-I MK4 delivers professional-grade performance in a compact platform. This full metal receiver features a Gisele-style super modular M-LOK rail system with 9.5" of accessory mounting flexibility. The rotary hop-up system provides precision accuracy tuning, while deep-engraved realistic trades enhance authenticity. An enhanced metal gearbox with 8mm bearing bushings ensures durability and reliability. The standard Ver. 2 gearbox incorporates quick spring change technology—swap springs in under 10 minutes without disassembly. Matte finish construction reduces glint and adds tactical appeal. Includes 300-round hi-cap magazine. Battery and charger sold separately.