JG Stubby CQB w/ Matrix Black Metal Gear Box.
Muzzle Velocity : 340~380 F.P.S.
Magazine Capacity : 190 round hi-cap included. (This AEG can use all M4 type magazine and drum magazines.)

Features:
- G&P Type Stubby rubberized short stock. (Can fit high capacity battery packs such as the 2300mah nun chuck).
-Folding front and rear battle sight. -Free Float Rail Interface System for all modular attachments. -SPR Type Motor Grip.
-Battery & Charger Included.
-Fully Automatic / Semi Automatic select fire.
-Adjustable Hopup
-Motor : High Torque Reinforced motor.
-Matrix Reinforced Complete Gearbox: This is the "black" customized metal gearbox with Matrix's special reinforced specifications only available to selected retailers. Get it at Evike.com to ensure the most updated specification and newest version.

Review:
This is a fully reinforced gearbox with superb reliability, performance and power. For a super short barrel and a 8.4V battery this AEG shoots harder than any stock Classic Army. It will be virtually impossible for some AEG with this barrel length to shoot over 360 fps, which demonstrates the superb air seal of the gearbox. The gear set and motor had passed li-poly test. Our previous batch of special Lipoly ready M4 from JG with Matrix lipoly ready black gearbox have had nothing but superb performance and feedback. Imagine wielding this M4 the size of a pistol with the performance of a full size rifle, running lipoly at insane rate of fire, you won't be disappointed.