CYMA CM.513 Gen 2 is a compact M4 SD airsoft rifle with a suppressor and four-sided RIS handguard. On top of the receiver is a Picatinny rail for a red dot sight or scope, while the rails around the handguard provide space for a grip, flashlight, laser, and other accessories.
With the stock collapsed, the rifle is about 700 mm long and weighs only 1.73 kg. Despite its short design, it delivers approximately 1.41 joules and 119 m/s (390 fps) with 0.20 g BBs. Always check the power limits set by the game organizer before CQB games.

Four-sided RIS and rail for red dot sight

The RIS handguard features 20 mm Picatinny rails on all four sides. A red dot sight or other optics can be mounted on the rail on top of the receiver, while the rails on the handguard may be used for attachments like a vertical grip, angled grip, or flashlight.
The included flip-up sights can be used as standard iron sights or flipped down when mounting optics.

M4 SD with integrated suppressor

The 5-inch outer barrel is surrounded by a polymer suppressor. The 280 mm inner barrel continues through the suppressor, giving the model a carbine-length inner barrel without making the rifle unnecessarily long.
The suppressor is mounted on a 14 mm CCW thread and can be removed. Since the inner barrel runs inside the suppressor, you will need an external barrel extension of about 18 cm or a shorter inner barrel if you wish to swap the suppressor for a tracer unit.

Low weight and adjustable crane stock

The receiver, RIS handguard, suppressor, pistol grip, and stock are mainly made of polymer. The outer barrel, gearbox, and several stress-bearing parts are made of metal. This construction keeps the weight around 1.73 kg.
The crane stock can be set to five positions and has a rubberized butt plate. The battery is placed in the side compartments of the stock, which provide plenty of space for a crane- or nunchuck-style battery without needing to press the battery into the buffer tube.

Gen 2 with CYMA V2 MOSFET

The Gen 2 version is equipped with a CYMA V2 MOSFET, which provides faster trigger response and reduces the risk of trigger lockup. The rifle is fitted with a T-connector (DEAN), which offers a better electrical connection than the older mini-Tamiya connector.
The electronics are compatible with both 7.4 V and 11.1 V LiPo, but we recommend a 7.4 V LiPo battery. This still provides good trigger response while the lower rate of fire reduces load and wear on gearbox components.

V2 gearbox with quick change spring

The V2 gearbox features 18:1 steel gears, 8 mm steel bushings, and a quick change spring system. Inside you'll also find a type 2 cylinder, reinforced polymer piston with steel tooth, metal spring guide, and a sealed 20.96 mm nozzle.
The construction is based on TM standards, which means easy access to compatible wear parts and upgrade components.

Rotary hop-up and 6.04 mm inner barrel

The hop-up unit is accessed by pulling the charging handle back. The adjustable rotary hop-up unit allows for clear and stable adjustment of the trajectory.
The inner barrel is 280 mm long with a diameter of 6.04 mm. For the power level of this rifle, 0.25–0.28 g BBs are a suitable choice.

Two hi-cap magazines included

The CM.513 comes with two hi-cap magazines for 300 BBs each. The magazines are filled through the hatch on the top and the feeding mechanism is wound using the wheel on the bottom. The rifle uses standard M4/AR15 AEG magazines.

Included in the box

CYMA CM.513 Gen 2 M4 SD airsoft rifle
2 hi-cap magazines for 300 BBs each
Cleaning and unjamming rod

Specifications


Power:	Electric AEG
Model:	M4/AR15 SD
Caliber:	6 mm BB
Energy:	Approx. 1.41 J
Muzzle velocity:	Approx. 119 m/s (390 fps) with 0.20 g BBs
Rate of fire:	Up to approx. 19 BB/s depending on battery
Firing modes:	Semi-automatic and fully automatic
Hop-up:	Adjustable rotary hop-up
Gearbox:	V2 with quick change spring
MOSFET:	CYMA V2
Gears:	18:1 steel gears
Bushings:	8 mm steel bushings
Cylinder:	Type 2
Nozzle:	Sealed, 20.96 mm
Inner barrel length:	280 mm
Inner barrel diameter:	6.04 mm
Outer barrel length:	5 inches
Barrel threading:	14 mm CCW
Rails:	20 mm Picatinny
Handguard:	Four-sided RIS
Sights:	Flip-up folding sights
Stock:	Crane stock, adjustable to five positions
Magazine:	2 hi-cap magazines for 300 BBs each
Battery connector:	T-plug (DEAN)
Recommended battery:	7.4 V LiPo in crane or nunchuck format
Battery compatibility:	7.4 V and 11.1 V LiPo
Battery placement:	In crane stock
Battery and charger:	Not included
Material:	Polymer, aluminum and steel
Length:	Approx. 700–800 mm
Weight:	Approx. 1730 g
Color:	Black
Serial number:	Individual serial number

Minimum age of 18 year for purchasing air guns
We only sell air guns, airsoft, air rifles and other air powered weapons to customers 18 years or older. Please note that your country could have additional limitations on airguns, please check this before purchasing.

This product can also be found on our other international sites: