M4 CM.507 Sport Line, GEN-2 [CYMA]

The CM.507 GEN-2 by CYMA is an electric AR15-platform replica designed for versatile use in CQB and mid-range engagements. The GEN-2 version combines lightweight polymer components with an updated V2 gearbox featuring a CYMA V2 MOSFET, QSC quick spring change system, and rotary hop-up chamber, supporting improved trigger response and everyday handling.

Sport Line Series

The Sport Line series is a CYMA product line developed with a focus on improving handling comfort and overall functionality. The updated design solutions contribute to better balance, more comfortable operation, and increased practicality during regular use. For the player, this means a replica that offers greater freedom of movement during both fast-paced dynamic games and longer sessions.

Construction and Ergonomics

The replica is primarily made of durable polymer, while selected mechanical and functional components are constructed from metal. The design features an individual serial number located on the lower receiver.

The RIS handguard allows the installation of additional accessories such as a vertical grip, tactical flashlight, or laser unit. This enables easier customization of the replica to match the user's playstyle and mission requirements.

The adjustable stock supports comfortable length adjustment depending on the user and carried equipment. The ergonomic pistol grip improves weapon control during operation.

The 14 mm CCW thread allows the installation of airsoft-standard suppressors and tracer units.

Internal Components and Mechanics

The GEN-2 version uses a V2 gearbox based on the TM-standard design. The replica is equipped with 8 mm bushings, standard steel gears, and a type 2 cylinder matched to the internal barrel length.

The pneumatic system uses a sealed 20.96 mm nozzle, supporting stable operation and consistent performance. The system also includes a polymer piston with a single steel tooth and a metal spring guide with bearing.

The QSC quick spring change system allows more convenient power adjustment for different FPS limits without requiring full gearbox disassembly.

Electronic System - CYMA V2 MOSFET

The model uses the CYMA V2 MOSFET, which improves trigger response and supports the operation of the electrical system.

Performance and Accuracy

The replica delivers approximately 390 FPS in the factory configuration. The standard long-type motor allows a rate of fire of around 19 RPS when paired with a properly selected battery.

The model features a polymer rotary hop-up chamber and a precision 6.04 mm inner barrel with a length of 385 mm. This configuration supports shot consistency and effectiveness at medium range.

Power Supply

The battery is stored inside the stock, allowing convenient access during battery replacement while also improving the replica's balance. The model is compatible with 7.4V and 11.1V LiPo batteries equipped with a T-connect plug.

Package Includes

CM.507 Sport Line GEN-2 replica

hi-cap 300 BB magazines

Barrel thread type: counter-clockwise

Weight: 1880 g

Magazine material: ABS

Bearings type: steel sliding

Gearbox version: v.2

Bearings diameter: 8 mm

Magazine model: hi-cap

Battery type: cube

Accumulator connector type: T-connerctor

Battery included in set: NO

Material: ABS, aluminum, steel

Color: black

Fire type: auto, single

Serial number: YES

Length mm: 795

Inner barrel length mm: 385

Muzzle energy J: ~1

Magazine capacity BBs: 300

Muzzle velocity fps: ~328

Inner barrel diameter mm: 6.04

Barrel thread diameter millimeters: 14

ETU MOSFET: YES

Body material: plastic

Every replica pass initial check up. It's being checked and overshooted on XCORTECH X3200 chronograph.