M4 CM.068B Full Metal [CYMA] Key-Mod AEG Rifle

Inside there is a reinforced ver.2 gearbox, steel gears are mounted on reinforced 8mm bearings.

The spring guide is reinforced (metal) together with the bearing, which makes the spring work easier - 100m / s spring, giving a shot force of about 320 FPS.

Polymer piston has metal teeth and the cylinder - type "1" - was covered with black nickel "SMOKED" on the copper substrate providing perfect smoothness of the surface.

A huge advantage is the silent piston and cylinder head set, made of aluminum and covered with a blue anode,the piston head has bearing.

The replica has a powerful engine with increased torque equipped with neodymium magnets.

The way how gearbox is functioning will surprise a user.

The most important think, is that all accessories from other brand are compatible with this model, this influence on the longevity of your replica and on upgrade part and performance.

Specification:

· 11,5" external barrel, with a internal barrel 6,03mm diameter and a lenght of 290mm

· 10" aluminum Key-Mod handguard with 3 picatinny rails

· aluminum A3 flat top upper receiver

· aluminum lower receiver with 6 position stock

· polymer pistol grip

· folding sight set

· magazine 130 rounds

· dummy muzzle brake with a 14mm thread CCW (Possibility to mount a dummy silencer)

· enhanced trigger guard

· custom safety selector lever

· ambidextrous magazine release

· ambidextrous sling mount plate

Hop up: adjustable

Barrel thread type: counter-clockwise

Weight: 2620 g

Bearings type: steel sliding

Gearbox version: v.2

Bearings diameter: 8 mm

Magazine model: mid-cap

Accumulator connector type: small Tamiya

Battery included in set: NO

Material: aluminum, polymer

Color: black

Fire type: auto, single

Serial number: YES

Length mm: 750

Inner barrel length mm: 295

Muzzle energy J: ~1

Muzzle velocity fps: ~328

Inner barrel diameter mm: 6.03

Barrel thread diameter millimeters: 14

The replica does not have a charger and a battery in the set.

Every replica pass initial check up. 

It's being checked and overshooted on XCORTECH X3200 chronograph