Compact Bullpup ESG B-10 2.0 Airsoft Rifle

Manufacturer / Distributor: G&G Armament.
Made In: Taiwan
Power Source: Green Gas
Ammunition: 6mm plastic Airsoft BB's
Action: Gas Blowback., semi-auto
Burst Modes: 5-shot or 10-shot (selectable)
Trigger: Double-action only
Construction: Metal & polymer
Weight: 5.6 lbs (2.52 kg)
Overall Length: 18.39 inches (46.7 cm)
Inner Barrel Length: 12 inches (30.5 cm)
Magazine: 105-round AR-style mid-cap
Claimed Velocity:235 FPS in 5-shot mode and Lower in 10-shot mode
Rails: Picatinny rails on top and sides
Selector: Ambidextrous
Sling Mounts: Front and rear QD points

While the FPS may seem low, it’s important to remember that five or ten BBs are being fired simultaneously, which requires significantly more gas per shot.

In the Box:

• G&G ESG B-10 2.0 Gas Airsoft Shotgun
• 105-round AR-style mid-cap magazine
• Product brochure
• (Manual not present in this package, but typically included or available online)

The shotgun comes packaged in a large box with a sleeve that differentiates the 2.0 version from the original B-10.

Design & Layout:

The ESG B-10 2.0 uses a bullpup layout, which keeps the overall length short while still allowing for a reasonably long inner barrel. Despite its compact size, the gun feels very solid and heavy, likely due to its internal gas system and metal components.

Notable design features include:

• Picatinny rails on the top and both sides
• Ambidextrous selector switch for 5- or 10-shot bursts
• Ambidextrous magazine release
• QD sling mounts front and rear
• Non-orange flash hider
• Polymer butt plate with internal gas reservoir

Because of the low rail height relative to the grip, you’ll almost certainly want to install some form of optic or sight to get a usable sight picture.

Controls & Operation:

The selector switch serves as both the safety and burst selector, allowing you to choose between five or ten BBs per trigger pull. It’s ambidextrous and easy to reach from either side.

One thing worth noting is how the selector cycles internally. There can be a one-shot delay when switching between modes, meaning the first pull after switching may still fire the previous burst count before changing over.

The trigger is double-action only, as there’s no blowback system. While heavier than a single-action trigger, it’s not excessive especially considering the amount of ammunition being fired with each pull.

Magazine Compatibility:

The ESG B-10 2.0 uses standard AR/M4-style Airsoft magazines, including mid-caps and high-caps. It ships with a 105-round mid-cap, but you can easily use other compatible magazines from your collection.

The magazine locks in securely but does require a firm push to seat properly.

Gas System:

The gas reservoir is housed in the stock and holds a substantial amount of gas. Based on initial handling and other reviewers feedback, you should be able to fire multiple magazines before needing to refill, despite the high BB output per shot.

This is something we’ll fully confirm in the upcoming field test.

Pros:

• Unique gas-powered semi-auto shotgun design
• Fires 5 or 10 BBs per trigger pull
• Strong metal construction with excellent weight and balance
• Compact bullpup layout for close-quarters use
• Compatible with standard AR/M4 Airsoft magazines
• Efficient gas system despite high BB output
• Multiple rail options for optics, lasers, and accessories
• Sling-ready with front and rear QD mounts
• No orange tip, preserving realistic appearance
• High-quality G&G build at a reasonable price point

Cons:

• A sight or optic is essentially mandatory for proper aiming
• Double-action trigger is heavier than single-action designs
• Higher price compared to common AR-style AEGs
• No hop-up adjustment (typical for Airsoft shotguns)

Final Thoughts: The G&G ESG B-10 2.0 Gas Airsoft Shotgun is a standout platform in the Airsoft world. Its ability to fire massive bursts of BBs with each trigger pull makes it an ideal close-quarters and room-clearing tool, while the bullpup design keeps it compact and maneuverable.

If you’re looking for something different from the usual AEG rifles, this gas shotgun offers a lot of fun, solid performance potential, and serious intimidation factor.

A full shooting and field test video is coming soon.