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Cyma M4 M-Lok (Nylon Fibre - Mosfet/QD Spring - Inc. Bat. & Charger - CM623)
Want to buy a realistic-looking black airsoft gun (RIF) from onlyBBguns? Because these guns look so real, UK law (the VCRA Act) requires you to have a valid reason, called a "defence," to own one. Essentially, you need to prove you're buying it for airsoft skirmishing (the sport itself), not for any other purpose.
Here's how you can demonstrate your defence to onlyBBguns and buy a black airsoft gun:
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Show proof of skirmishing: Gather evidence like photos and videos from airsoft games you've participated in. These should clearly show you actively involved in skirmishing, demonstrating your intent to use the gun for the sport.
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Become a registered skirmisher: The easiest way to prove your defence is by joining a recognized airsoft association and getting a membership card. The most common one in the UK is UKARA. This registration confirms you're a legitimate airsoft player.
Don't have either of those? No problem! You can still buy the airsoft gun. onlyBBguns can paint it in a two-tone colour scheme. This means part of the gun will be sprayed a bright, non-realistic colour. This makes the gun a "non-realistic imitation firearm" and avoids the restrictions of the VCRA Act. Anyone over 18 can legally buy a two-tone airsoft gun.
£159.99
SKU
211891
Free Delivery & Returns*
SHIPPING OPTIONS
DELIVER TO
United Kingdom
United Kingdom
| TYPE | HOW MUCH? |
|---|---|
| Standard | £0.00 |
| Expedited | £4.99 |
DELIVER TO
Other countries
| TYPE | HOW MUCH? |
|---|---|
| International | £14.99 |
Key Features
- M-LOK Rail: 13" polymer modular M-LOK Handguard
- Integrated Performance: Factory-installed MOSFET unit for superior electrical efficiency, protecting trigger contacts, and improving response.
- Quick Detach (QD) Spring: Includes a Quick-Change Spring System for rapid FPS adjustment without opening the gearbox.
- 6 position adjustable crane style stock
- Lightweight Build: Nylon Fibre receiver and body for an extremely light carry weight (approx. 2.2 kg) and excellent maneuverability.
- Metal barrel assembly and buffer tube
- Flip up rear SCAR type sight
- Value Package: Battery and Charger Included
- Utilizes a reinforced Full Metal Version 2 (V2) Gearbox, easily repaired or upgraded
- Durable injection moulded polymer upper and lower receiver with enlarged trigger guard
- M-LOK handguard
- Full length top rail is ideal for mounting optics, peq boxes or other accessories
- Ambidextrous rear sling point
Specifications:
Length: 820mm - 900mm (Adjustable)
Weight: 1950g
Inner Barrel: 400mm
Magazine Capacity: 350rd Hi-Capacity
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgrade-able
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Hopup: Yes, Adjustable
Package Includes: Gun, Magazine, Manual, Battery & Charger
The Cyma M4 M-Lok Mosfet AEG (CM623)
The Cyma M4 M-Lok Mosfet AEG (CM623) represents a new generation of high-value airsoft rifles, blending modern modularity with advanced internal technology, all contained within an ultra-lightweight chassis.
Lightweight Nylon Fibre Advantage
The rifle utilizes Nylon Fibre for the receiver and external body, achieving an extremely light carry weight of approximately 2.2 kg.
This crucial "Featherweight" design maximizes operator agility, minimizing fatigue during extended skirmishes and accelerating target transitions. The high-impact nylon provides exceptional durability and resilience against field knocks, making it a robust and reliable platform without the unnecessary heft of full metal.
Integrated Performance: MOSFET and QD Spring
Internal performance is drastically elevated by factory-installed technology.
The integrated MOSFET unit protects the delicate Version 2 trigger contacts from damaging electrical arcing, resulting in a cleaner, faster electrical cycle and a crisper trigger response.
Furthermore, the Quick-Detach Spring System (QD Spring) allows the user to change the main spring—and thus the FPS—rapidly and without fully dismantling the gearbox.
This essential feature ensures the Cyma M4 M-Lok Mosfet AEG is instantly adaptable between velocity-restricted indoor CQB limits and outdoor field limits.
Modern M-LOK Modularity
The external profile features a modern M-LOK Handguard. This modular rail system provides superior versatility over older quad-rails by offering a lightweight interface for secure accessory mounting.
Players can precisely place vertical grips, tactical lights, and lasers via M-LOK slots, tuning the rifle's handling profile exactly to their preference. The adjustable M4 stock provides further ergonomic flexibility, allowing the user to achieve the perfect length of pull for stable shooting.
V2 Gearbox Reliability and Agility
The Cyma M4 M-Lok Mosfet AEG utilizes a reinforced Version 2 (V2) Gearbox. This ensures the rifle is built upon the most widely supported and repairable internal platform in airsoft.
The V2 gearbox, coupled with the efficiency of the MOSFET, ensures consistent performance, delivering a stable muzzle velocity. This reliability, combined with the rifle's low weight and high agility, makes it an excellent choice for a variety of field roles.
Complete Value Package and Competitive Role
The CM623 offers exceptional value by shipping as a complete, ready-to-skirmish package, including a Battery and Charger. This convenience ensures immediate use.
The combination of advanced internal upgrades (MOSFET, QD Spring), the agile lightweight body, and the full value package makes the Cyma M4 M-Lok Mosfet AEG the definitive, high-value choice.
| SKU | 211891 |
|---|---|
| Type | Rifle |
| Brand | Cyma |
| Weapon Category | Rifle |
| Powered By | Electric |
| FPS | 301 - 350 |
| Construction | Polymer |
| Hop Up | Adjustable |
| Variant / Platform | M4 |
| Blowback Guns | No |
| Recoil | No |
| Shell Ejecting | No |
| Fire Mode | Safe/Single/Auto |
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Delivery
Our courier partners deliver from Monday to Friday, excluding Bank Holidays. We will attempt to dispatch all packages within 24 hours, although at peak times this may take slightly longer. Orders with products with two-tone service or Defence Check may take longer to dispatch.
Once the order is dispatched you will get an email with the tracking number and which courier partner it’s going to be delivered via. Any missing/incorrect items need to be reported with 48hrs of signed delivery.
Returns
Click Here to Download the Returns Form (PDF Format)
Faulty Product?! Unfortunately that is part of life but be rest assured we are here to help! Contact one of our friendly staff via phone or email. Stating what the problem is, if we can resolve the problem via phone or email great if not then they will advise how to send it back and what details we require.
Two tone
We can two tone any weapon we sell at Bespoke Airsoft. The purpose for two toning is if you do not hold a valid defense under the Violent Crimes Reduction Act (VCRA, 2006) which is to prevent the misuse of Replica Weapons, which applies in England, Scotland, Wales and Northern Ireland.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.
FAQs
1. What is a BB gun used for? BB guns are mostly used for practice shooting and training. The stronger ones (i.e. Air Rifles) can also control pests or hunt small animals.
2. Do you need a Licence in the UK for a BB gun? No, you don't need a licence for a BB gun in the UK, but there are rules. The BB Gun needs to be in two colours; one has to be a primary. All our guns are on the website as per default.
3. Is a BB gun a good weapon? BB guns, despite sometimes being seen as toys, can be dangerous. They fire pellets at high speeds and can cause serious harm, or even be deadly in some situations.
4. Can you shoot BB guns in public in the UK without a Firearm license? BB guns in the UK navigate a legal grey area. While certain models, notably low-power 'soft air' types, typically evade classification as section 1 firearms, more potent versions may require a valid firearms certificate to avoid legal repercussions.
5. Can you shoot a BB gun in your garden? You can use a BB gun in your garden under UK law, but you have to ensure the pellets don't go into your neighbour's yard, plot or land. If they do and you don't have permission, it's against the law.
6. Which UK law am I breaking if the pellets go into my neighbour's law without permission? If your BB gun pellets go into your neighbour's yard without permission, you're breaking UK laws. Specifically, the 1968 Firearms Act and possibly the 2003 Anti-Social Behaviour Act, because you may be causing your neighbours trouble or worry.
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