CYBERGUN x COLT M4A1 SOPMOD BLOCK II

EMG DANIEL DEFENSE RIS II — GHK 10.3″ MK18 MOD.1

LICENSED COLT • LICENSED DANIEL DEFENSE RIS II • 10.3″ MK18 CONFIGURATION • CNC BOLT CARRIER • GHK GAS BLOWBACK

COLT // MK18 MOD.1 // SOPMOD BLOCK II // DANIEL DEFENSE RIS II // GHK GBBR // 10.3″ // GAS BLOWBACK

Compact Block II styling. Licensed details. GHK gas blowback architecture.

The Cybergun x Colt M4A1 SOPMOD Block 2 Gas Blowback Airsoft Rifle with EMG Daniel Defense RIS II – GHK 10.3″ Mk18 MOD.1 brings together three major names in one highly distinctive GBBR: Colt, Daniel Defense, and GHK.

Built around full-metal upper and lower receivers with stamped Colt trademarks, this 10.3-inch configuration captures the unmistakable profile associated with the compact Mk18 MOD.1 / SOPMOD Block II format.

The centrepiece is the CNC-machined, officially licensed Daniel Defense RIS II aluminum handguard, while underneath the receiver GHK’s gas blowback system uses a CNC bolt carrier group, negative-pressure blowback architecture, improved bolt locking components, and a lighter-generation gas magazine.

For anyone who wants the short Block II aesthetic without sacrificing the mechanical character of a GBBR, this configuration hits a very specific mark.

10.3″ MK18 MOD.1

THE COMPACT BLOCK II CONFIGURATION.

This isn’t simply a standard M4 with a shorter front end.

The:

10.3-INCH CONFIGURATION

is what gives this rifle its unmistakable Mk18 MOD.1-inspired profile.

The shortened barrel assembly and RIS II front end create compact proportions while preserving the recognizable SOPMOD Block II appearance.

Compared with the longer 14.5-inch M4A1 configuration, the 10.3″ version offers a noticeably shorter overall package and a different visual balance.

For collectors and airsoft players specifically searching for a GHK Mk18 GBBR, this is the configuration that delivers the classic short-barrel Block II look.

COLT

STAMPED TRADEMARKS. FULL-METAL RECEIVERS.

The rifle is built around:

FULL-METAL UPPER + LOWER RECEIVERS

finished with stamped Colt trademarks.

Those markings are an important part of the overall presentation, especially on a replica centred around the M4A1/Mk18 family.

The metal receiver set is paired with a:

ONE-PIECE METAL BARREL ASSEMBLY

creating a substantial foundation for the short 10.3″ front end.

DANIEL DEFENSE RIS II

THE DEFINING BLOCK II HANDGUARD.

Few components define the SOPMOD Block II appearance as strongly as the RIS II.

This rifle comes equipped with a:

CNC-MACHINED DANIEL DEFENSE LICENSED RIS II

constructed from aluminum alloy and finished with laser-etched Daniel Defense trademarks.

Its 20mm rail surfaces provide extensive mounting space for appropriately compatible airsoft accessories while delivering the distinctive quad-rail appearance associated with this configuration.

It isn’t just another generic handguard.

The licensed RIS II is one of the defining visual features of the entire build.

FLAT-TOP RECEIVER

READY FOR YOUR OPTICS SETUP.

The upper receiver features a:

FLAT-TOP RAIL

providing a straightforward mounting surface for appropriately compatible airsoft optics and mounting hardware.

Combined with the extensive 20mm rail space on the RIS II, the Mk18 offers a highly configurable exterior while maintaining the traditional Block II aesthetic.

GHK GAS BLOWBACK

CNC BOLT CARRIER. NEGATIVE-PRESSURE SYSTEM.

Inside the receiver is a:

CNC-MACHINED BOLT CARRIER GROUP

working as part of GHK’s negative-pressure gas blowback system.

The bolt carrier undergoes CNC manufacturing and heat treatment, with the supplied design emphasizing harder material and smooth mechanical operation.

As the rifle operates, the gas system cycles the action and creates the movement and recoil feedback expected from a dedicated GBBR.

For players moving from an AEG, this mechanically cycling action is one of the biggest differences in the overall experience.

IMPROVED BOLT LOCKING

FUNCTIONAL MECHANICAL DETAILS.

The GHK system incorporates:

REALISTIC-STYLE FIRE CONTROLS

along with an:

IMPROVED BOLT LOCKING LEVER

These functional elements complement the cycling gas blowback action and give the platform considerably more mechanical interaction than a conventional electric rifle.

The controls remain part of an airsoft-specific gas blowback system and should be maintained according to the manufacturer’s recommendations.

LIGHTER MAGAZINE DESIGN

35% LIGHTER THAN THE EARLIER GENERATION.

GHK’s newer magazine design addresses one of the areas that can add substantial weight to a gas blowback loadout.

The supplied specifications list the magazine as:

35% LIGHTER

than GHK’s older first-generation magazine design.

That reduction is especially useful on a GBBR, where magazines contain the gas system and are naturally more substantial than typical AEG magazines.

Magazine compatibility should still be confirmed specifically for the applicable GHK system and generation.

CRANE STOCK

CLASSIC ADJUSTABLE REAR CONFIGURATION.

At the rear, the rifle uses an:

ADJUSTABLE CRANE-STYLE STOCK

paired with a polymer pistol grip.

The adjustable stock balances the compact 10.3-inch front end while maintaining the recognizable M4/Mk18 silhouette.

Together with the Colt receiver and Daniel Defense RIS II, it completes the rifle’s distinctive Block II presentation.

WHAT DEFINES THIS MK18 MOD.1?

10.3″ Configuration — compact Mk18-style proportions.

Licensed Colt Receiver — full-metal construction with stamped trademarks.

Licensed Daniel Defense RIS II — CNC-machined aluminum with laser-etched markings.

One-Piece Metal Barrel Assembly — substantial front-end construction.

GHK Gas Blowback System — mechanically cycling GBB architecture.

CNC Bolt Carrier Group — heat-treated construction designed for smooth operation.

Improved Bolt Locking Lever — functional part of the GHK system.

Lighter Magazine — approximately 35% lighter than the older first-generation design.

GHK // GAS & COMPATIBILITY

Gas blowback operation is affected by temperature, magazine temperature, gas condition, seals, maintenance, and firing pace. Follow the manufacturer’s current operating and maintenance recommendations and chronograph the rifle before field use.

Replacement magazines, internal parts, and aftermarket components should be verified specifically for the applicable GHK generation rather than assuming universal AR-pattern GBB compatibility.

COLT x DANIEL DEFENSE x GHK

THE 10.3″ SOPMOD BLOCK II FORMULA.

The Cybergun x Colt M4A1 SOPMOD Block 2 Gas Blowback Airsoft Rifle with EMG Daniel Defense RIS II – GHK 10.3″ Mk18 MOD.1 brings together the features that define one of the most recognizable compact AR-style airsoft configurations.

A full-metal Colt-marked receiver, 10.3-inch barrel configuration, licensed CNC Daniel Defense RIS II, flat-top upper, adjustable CRANE stock, CNC bolt carrier, negative-pressure GHK gas system, improved bolt locking lever, and lighter-generation magazine create a GBBR with a strong identity from receiver to muzzle.

For customers searching for a GHK Mk18 GBBR, Colt Mk18 MOD.1 airsoft rifle, 10.3″ SOPMOD Block II GBBR, Daniel Defense RIS II airsoft rifle, Colt M4A1 gas blowback rifle, or GHK Mk18 Canada, this compact configuration combines licensed exterior details with the mechanically engaging character of GHK gas blowback.

COLT / MK18 MOD.1 / 10.3″ / SOPMOD BLOCK II / DANIEL DEFENSE RIS II / GHK GBBR