Custom Airsoft Pistol
The Ultimate Airsoft Pistol For Supreme Realism And Individuality
Built with all-metal parts, all made in-house from raw materials to final finishing. Run buttery smooth.
Highly tuneable stainless steel/steel internals, to be your No. 1 fit sidearm.
Precise tolerance and handcrafted by the two gunsmith brothers, the expression of artisan craftsmanship.
Loyal to the originals, with wholehearted attention to detail.
Tokyo Marui Hi-Capa based.
It's about preserving a sense of pure beauty, a man's romantic heart.
There are two senses in which an airsoft pistol build can be good: it can shoot really fast, and the whole purpose of it is for competitive shooting, the excitement of flowing on the stage, being the number one shooter. It can have an eye-pleasing appearance, and the enjoyment is the reason you shoot with it. The best analogy is a hardcore race car and an experience-oriented roadster, respectively.
No matter what, it’s always true that the best pistol is what you always want to pick up; a pistol build that makes you enjoy the entire process, from taking the time to appreciate every small part, to practicing drawing, dry firing, and so forth. If a pistol wasn’t something you enjoy with, shooting will only be an endurance to you. The way to shooting well is to begin by finding the best pistol yourself always enjoy. Like someone driving a car he loves, he’ll naturally be driving fast, even though that car isn’t the fastest but the one he loves the most, drives the most.
Indeed, the two senses of a good airsoft pistol build are like two sides of the same coin. But we deeply believe, when you finally put together a pistol build you’re satisfied with, there’s an incredibly powerful sense of fulfillment. This is what we work for, with the commitment to the quality of every piece we make.
– The Gunsmith Brothers
LATEST
INFINITY
∞
Staccato
&
STI 2011
LIMCAT CUSTOM
TTI
Frequently Asked Questions of Finished Hi-Capa Airsoft Pistols
Am I legal to buy an airsoft pistol?
You’re legal to purchase an airsoft pistol, as classified as an ‘imitation firearm’ under Section 2 of the Firearms and Ammunition Ordinance (Cap. 238), in Hong Kong, as long as you comply and can demonstrate your strict compliance with the following.
In accordance with Clause 20 of Part III of Cap. 238, you (the person who will be in possession of an imitation firearm) (the definition of an Imitation Firearm refers to Clause 2 of Part I of Cap. 238), must satisfy the Commissioner of Police (or a magistrate if applicable) that you are not in possession of the imitation firearm for a purpose dangerous to the public peace, or of committing an offence.
Therefore, before you made a purchase of our custom airsoft pistols, you need to (A) provide a proof of membership in any accredited shooting club in Hong Kong recognized for airsoft sport activities, and (B1) declare the purpose of the imitation firearm you’re going to purchase is solely for airsoft sport activity(ies) conducted at the accredited shooting club only, and (B2) acknowledge that converting or modifying the imitation firearm (as tested for FPS compliance) into a firearm (the definition of an Arm refers to Clause 2 of Part I of Cap. 238) is an offence under Cap. 238, and Gunsmith Bros Airsoft will not be liable for any legal consequences from such actions.
For customers located outside the Hong Kong SAR: Please consult and comply with the relevant laws and regulations in your jurisdiction regarding the purchase, possession, and use of imitation firearms. We’re available HERE to assist with inquiries related to compliance.
What makes GSB’s custom pistol builds special?
Each finished custom hi-capa airsoft pistol is the crystallization of our craftsmanship, dedication, and exhaustive effort.
Each custom build begins with meticulously hand polishing for the reflective surface, including all those curvatures.
The pieces are then handled by our dedicated Custom Gunsmith for the coloring process, where we apply a self-developed coating thickness—refined through 15-16 rigorous trials—to ensure the slide and frame interact buttery-smoothly but still tight. All materials used are imported from Japan and Switzerland, their quality is the best in this world.
Besides the quality control, each color is specially mixed by the Custom Gunsmith. That’s why you won’t find them elsewhere. Our Custom Gunsmith the standard 12-15 coloring processes to 32 steps, resulting in exceptional fade-resistance, durability, and long-term vibrancy.
All the above is only for finished custom pistol, unlike mass-produced options. So yes, every GSB hi-capa airsoft pistol is tailored to your specifications—no shortcuts, just artisanal attention to detail that enhances realism, modifiability, and reliability for shooters at all levels.
Are GSB hi-capa airsoft pistol compatible with Tokyo Marui models or other after-market brands?
GSB parts undergo stringent in-house testing to meet Tokyo Marui’s exact specifications.
As long as your after-market parts are in Tokyo Marui standard and quality is fine, they’re usually compatible, though minor fitting adjustments may be needed. Our gunsmiths have prepared a detailed compatibility chart for all of our parts, you can check it out HERE.
How long to wait for a backorder custom pistol?
Typically 7-10 calender days, and delivery arrival within 5-10 days depending on your region and smooth custom clearance, and the shipping option selected.
Is there any warranty?
Yes, GSB offers a 1-year warranty on all custom hi-capa airsoft pistol builds, covering defects in components. Normal wear and tear, including scratches or consumables like springs and magwells, is not covered.
If you’re located in Hong Kong, visit our Kwai Fong workshop by appointment for repairs by our gunsmiths.
If you’re located outside Hong Kong, we provide online technical support with detailed self-repair instructions, and we’ll ship replacement hi-capa airsoft pistol parts free within the warranty period, as long as the defects are confirmed to be our responsibility.
Is there a chance that the special made finishing affect the functioning of a new pistol, like what the cerakote coat does?
GSB’s custom hi-capa airsoft pistol builds require no break-in period and are ready for immediate use. Unlike Cerakote applications that may add thickness and cause drag, the finishing of our custom pistol builds are micron-thin but durabe and fade-resistant. For optimal performance and durability, follow our regular maintenance guide (available on our site).
Why aren’t GSB’s custom hi-capa airsoft pistol builds cheap?
GSB’s custom hi-capa airsoft pistol builds reflect premium quality and individuality, handcrafted by our Custom Gunsmith in Hong Kong.
Each pistol is treated as a single batch, with one dedicated gunsmith overseeing every step—from design consultation to pattern drawing, and our 32-step electrochemical coloring process. This ensures consistent hue, reflectivity, and perfectly aligned slide-to-frame patterns. The surfaces are polished by the gunsmiths’ skilled hands. Using high-grade materials imported from Japan and Switzerland, we achieve pin-point coat thickness to ensure the slide and frame interacts smoothly, and superior durability of the finishes for daily uses.
This one-gun-one-gunsmith approach minimizes defects and delivers unmatched craftsmanship, unlike mass-produced options. This is our highest standard, justifying the investment for shooters seeking one-of-a-kind airsoft pistol build.