The 
JG Swat 5K-A1 CQB SMG (Inc. Battery and Charger - 201T - Black)
 is a compact and lightweight electric airsoft gun designed for close-quarters battle, featuring a metal gearbox and adjustable hop-up
 
Key Specifications & Features
Feature 
Specification
Platform
JG 5K-A1 MP5K-style CQB AEG
FPS (with 0.20g BBs)
Approximately 300 fps
Fire Modes
Safe, Semi, and Full-Auto
Construction
Metal upper parts (receiver, outer barrel, sights), polymer lower receiver and grip
Gearbox
JG V3 metal gearbox
Magazine Capacity
Typically comes with a 120-round Hi-Cap magazine, though some retailers list 200-round options
Length
Around 32 cm overall
Weight
Approximately 2.1 kg (or 1.84 kg according to some sources)
Hop-Up
Adjustable
Included Items
Rechargeable battery and charger