If you’ve been following our custom builds for a while, this one won’t surprise you. The Double Bell G26 Advanced Auto Assassin is one of the most requested pistols we’ve had in the comments, and for good reason. It’s compact, aggressive, and built to punch well above what you’d expect from a stock G26-style gas pistol. This is a proper custom sidearm designed for players who want speed, realism, and reliability in a small package.
First Impressions and Overall Build
Straight out of the gate, the G26 Advanced Auto Assassin feels solid. The base platform is a compact gas pistol, but the advanced version adds an extended body kit that completely changes the look and feel. The front extension and magazine base kit give it a more aggressive stance while still keeping that short, manoeuvrable G26 profile. It’s small enough to be an excellent secondary, but with enough presence and performance to run confidently as a primary pistol build.
The addition of an RMR-style red dot on the rear finishes the look nicely. Aesthetically, it’s sharp, tactical, and very clearly a custom build rather than a stock pistol with a few bolt-ons.
Fire Modes and Shooting Experience
One of the standout features of the G26 Auto Assassin is its selectable fire mode. You can switch between single fire and full auto, depending on how you want to run it on the day.
Fire mode options
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Single fire for controlled, accurate shots
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Full auto for rapid mag dumps and close-range dominance
It’s worth noting that full auto is exactly what it sounds like. Flick the switch and the pistol will empty a full magazine in about a second. That’s roughly 15–18 shots gone almost instantly, making it brutal in close quarters but very gas-hungry. Single fire is where most players will live, offering fast follow-up shots without burning through gas and gels too quickly.
Custom Internal Upgrades
The Advanced Auto Assassin isn’t about throwing dozens of unnecessary parts into a pistol. Instead, it focuses on targeted upgrades that make a real difference to performance and longevity.
Key internal upgrades
- 150 percent enhanced recoil spring for faster, sharper slide return
- Inbuilt hop-up integrated into the barrel
- Internal lubrication for smoother cycling
- Upgraded internal components, including stainless steel parts replacing weaker cast components
The upgraded recoil spring is immediately noticeable. The slide snaps back into battery quickly, allowing faster follow-up shots and a much more aggressive shooting feel compared to a stock G26. The built-in hop-up is another big win, removing the need for external or aftermarket hop-up units while still providing consistent shot trajectory.
Upgrading internal components like the hammer from cast to stainless steel dramatically improves durability. This is a pistol designed to be used regularly, not something that starts wearing out after a few months of play
Performance on the Range
On the range, the G26 Advanced Auto Assassin performs exactly how you’d expect from a well-balanced gas pistol custom. Single fire is snappy and responsive, with consistent cycling and a satisfying recoil impulse. Full auto is wild, dumping the magazine almost instantly and putting a grin on your face every time you use it.
Accuracy is solid for a compact pistol, especially with the RMR sight assisting with target acquisition. The inbuilt hop-up helps keep shots stable, making it effective well beyond typical sidearm distances.
Who Is This Pistol For?
This custom G26 is not aimed at first-time gel blaster owners. It’s best suited to players who already understand gas pistols and want something more refined than a stock build.
Best suited for
- Players looking for a high-performance gas sidearm
- CQB and close-range focused gameplay
- Enthusiasts who want a compact but aggressive custom pistol
- Players who value durability and upgraded internals
If you enjoy fast-paced gameplay and want a pistol that feels sharp, responsive, and purpose-built, this one ticks a lot of boxes.
Final Verdict
The Double Bell G26 Advanced Auto Assassin is a clean, well-executed custom that focuses on performance where it matters. The upgraded recoil system, improved internals, inbuilt hop-up, and aggressive styling all come together to create a pistol that feels noticeably better than a standard G26. It’s compact, powerful, and built to last, making it an excellent choice for experienced players looking to upgrade their sidearm game without going over the top.
If you’ve been waiting for a G26 that actually feels like a premium custom rather than a lightly modified stock pistol, this is exactly that.
