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APS - M4 Guardian 8.0 CQB with SDU v2.0 Mosfet Gel Blaster Rifle - Black

Product Description
$395.00 $499.00
Maximum quantity available reached.

* This item is restricted for sale in Queensland only – please see Gel Blaster Purchase and Shipping restriction details below.

This model is the APS M4 Guardian 8.0 CQB. The Guardian CQB boasts the eSilver Edge gearbox, a full Metal Construction from Suppressor to Buffer tube apart from the Pistol Grip and CRS Butt stock which is constructed of Reinforced Polymer. This Gel Blaster is sleek and aggressive with its suppressor and the aggressive angles of the handguard and the unique pistol grip with oversized trigger guard. 


Do not upgrade any part of your toy gel blaster as this will void the warranty. Upgrades refer to pulling any of the blaster apart or opening it up, changing springs or upgrading the battery from 7.4v to an 11.v battery. 


eSilver Edge Gearbox

Quick Change Spring System

The Quick Change Spring Guide has 4 locking lugs instead of 2.
Polished and Buffed housing surface.
8mm Bearing Bushings, Bearing Piston Head and Bearing Spring Guide
Mosfet Installed

  • Slim and light weight KeyMod Hand Guard with Hand Stop implicit in the design, which gives your support hand a low profile anchor point in the forend. - (Phantom Dash 10 ")
  • The new pistol grip (phantom overload) that pre-installed with non-slip EVA plastic at the front and rear increases the comfort of holding it.
  • New version of Magazine Ambi Catch on both sides (Phantom Ambi Mags Release)
  • New Ambi trigger selector on both sides (Phantom Long / Short Throw safety selector)
  • New Ambi loading handle (Combat Ambi phantom load identifier)
  • Flat Trigger (Enhance Control and lighter perceived weight)
  • RS-1 stock installed (R Series 1 stock)


  • Gel Type: 7-8mm
  • Inner barrel size: 7.5mm
  • Barrel Type: Polished Stainless Steel
  • Battery Source: 7.4 LiPo Battery with Mini Tamiya connector**
  • Alloy Silver Edge Gear Box Installed
  • 8mm Metal Bushings
  • M100 Spring
  • 480 Long Shaft Motor
  • Velocity: 280+FPS
  • Fire Selector: Safe / Semi Auto / Full Auto
  • Metal Hand Guard and ABS Gen 8 Magazine 
  • Metal Gear Box, Receiver, Sliding Stock, Handguard, Outer Barrel.
  • Pistol Grip is made of a reinforced polymer. 
  • Magazine Capacity: 250 Gels
  • Suitable Hopup: recommended to use a 14mm CCW threaded hopup unit for maximum effectiveness***

** Battery, Charger & Gels not included

eSilveredge Gearbox SDU Mosfet Instructions/Specifications

SDU2.0 is a programmable electronic control unit (ECU) chip that is fitted used in eSilver Edge Gear Box

Simply pressing down the button underneath of the gear box, user can switch its fire selector modes (total 5 different modes). No external device or trigger control are needs, it is easy to program anytime and anywhere by the user.

First, connect your AEG with a fully charged battery (7.4v) Battery. with no stronger than a 2000mAh battery.

Second, find the switch button. The button is located underneath the gear box reachable from inside the magwell of the lower receiver.

How to change the mode?

Step 1) Press and hold the button. You will see a Red LED light on, hold till you see its blinking 2 times, release the button to accept the changes. Repeat Step 1 to continue your choice.

Choice of Firing Mode:

Mode 1 (Default)




Mode 2



Three Burst

Mode 3


Two Burst


Mode 4


Three Burst


Mode 5


Three Burst

Nine Burst

**Double click the button or unplug the battery anytime to reset the ECU back to its factory settings (Mode 1) **

Use of Advanced S.D.U.™ chipset

The S.D.U. chipset that is used in eSilver Edge Gear Box has a unique function that stop the gearbox from further damage if the electric current is too high. Simply put, the electric current / Ampere will increase if there is a malfunction inside the gearbox. For instance. a bad motor, damaged gears or short circuit. When the S.D.U. detects more than 5 trigger presses in higher Amperage, the whole gearbox will shut down to prevent further damage. User has to disconnect and then reconnect the power supply to reboot the gearbox, we strongly recommended to check the internals immediately if a mal-function occurs.

Micro Switch Trigger

eSilver Edge Gear Box standard comes with micro switch trigger works together with the S.D.U.™ providing you an instant trigger response when shooting. Based on our testing, the response time of the switch is just 0.02 sec and designed for two hundred thousand presses. With the short stroke design of the trigger, it is unbelievably fast and you won’t feel any trigger delay when shooting.

Package Includes:

  • 1 x APS M4 Guardian 8.0 CQB SDU 2.0 Gel Blaster Rifle
  • 1 x Gen 8 Magazine - Black
  • 1 x Deadshot Accuracy Tightbore 7.08mm Hand made custom inner barrel
  • 1 x Alloy 14mm CCW Threaded Suppressor
  • 1 x Safety Glasses

** Battery and charger not included

*** Note: Recommended gel ammunition: for maximum performance: iHobby Ultimate Formula Gels, iHobby Blue Pack Gels  / Goat Balls - Original Formula Gels / Goat Balls - Red edition Gels.

Gel Blaster Purchase and Shipping Restrictions

Gel Blasters are a restricted item in all states and territories of Australia except Queensland. Gel blasters are therefore unable to be purchased from our site by customers residing outside of Queensland. If you reside outside of Queensland and add a gel blaster to your cart it will automatically be blocked and will not allow you to check out.

For further information on the laws regarding gel blasters in your state or territory see the following links: ACT , NSW , VIC , SA , WA , NT , TAS , QLD .

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