GR4 100Y PBB Carbine Replica

Replika karabinka GR4 100Y PBB
12 months
Velocity [FPS]:
Electric propulsion
Gearbox version:
v2 Gearbox
Type of fire:
Single, auto
Made of:
Metal + plastic
Lenght [mm]:
520 / 770
Inner barrel length [mm]:
Weight [g]:
Magazine type:
Hi-Cap magazine
Magazine capacity [pcs]:
Yes, adjustable
Blow Back:

Descripción del Producto

The GR4 100Y BB carbine replica made by the G&G company is made within the Combat Machine project which aim was to deliver a high class replica in the price that you could call economical. The Combat Machine replicas characterized themselves with the highest quality of make, high operating culture and the high quality of the materials used – what is very characteristic for the G&G company. The main factor allowing to lower the price is the use of the body and the front grip that were made of high quality plastic instead of metal. It is also significant that the body itself is made of plastic that was reinforced with fiberglass – just like the front grip, the stock and almost every plastic element. The iron aiming sights, the magazine, the stock and the cocking handle were made of metal. The shape of the piston grip is almost identical to the real firearm’s pistol grip.

The front grip is equipped with RIS rails and the top rail in a one piece rail that is integrated with the body of the replica. Thanks to this the user has got a 340mm long RIS rail. There are iron aiming sights mounted on the top rail – a classical front and rear iron aiming sight.

The replica was made in black color. It is perfect for fighting on short and middle distances due to the use of the M100 main spring that guarantees the muzzle velocity of about 310-320 FPS. The use of single top RIS rail allows for the attachment of any given optical aiming device. Moreover, thanks to the complete RIS rail system that is located in the place of the front grip it is possible to attach additional gear such as a tactical grip, a flashlight, a laser target marker and so on…

An extraordinary Blow-Back system, known from the Top Tech replica ( the more “professional” and what follows it – the more expensive G&G line ), provides additional realism for the user of the replica and ensures additional experiences for the user himself.

The Pneumatic Blow-Back system operates on the principal of taking a part of the compressed air from the gearbox to a special cylinder that is located above the gearbox’s casing. The small piston that is located in the Pneumatic Blow-Back system moves a thin plate that is attached to it. The plate imitates the bolt carrier.

ATTENTION: The manufacturer does not recommend using batteries stronger than 8,4V due to the fact of the possibility of damaging the aforementioned plate.

The G&G replica’s that are equipped with the Pneumatic Blow-Back system have got a reinforced and modified V.2 gearbox. The modification that was made was the adaptation of the gearbox to the Pneumatic Blow-Back system and adding the “active main spring release” button in the form of the actuator.


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