CYMA CM.508 M4 S-System Beginner Bundle

CYMA
£119.99 Pack price
Normally £151.94
Save £31.95
  • Affordable beginner bundle
  • Everything you need to get started
  • M4 S-System, Battery, Charger, charging bag, BBs & eye pro!

If you want to get started in the sport and hobby of Airsoft, our CM.508 M4 S-System Beginner Bundle is one of the most affordable ways to do it! This set includes the CYMA Sport CM.508 M4 S-System AEG, a 1KG Bulk Bag of 0.25g BBs, a 7.4V LiPo battery, a LiPo balance charger, a battery safe charging bag and a set of Ballistic Rated Shooting Glasses.

This is probably the cheapest way to get into Airsoft at the moment, though if you're going to be skirmishing right away, we recommend grabbing a lower face mask or a full face mask. Check out the Full Description to learn more about this fantastic value beginner bundle!

Full description

Customize this product below

Code:
  • 6.04mm Tightbore inner barrel
  • Gen.2 - CYMA V2 MOSFET, Deans connector
  • S-System/SIR 20mm railed handguard
CYMA Sport Gen.2 AEGs are NOT supplied with a battery or charger. We recommend using a 7.4V 1450mAh LiPo battery and a LiPo Balance Charger. A brief reminder never to leave your battery on charge unattended and always use a Battery Safe Charging Bag

If you need an affordable beginner Airsoft gun with unique looks, the CYMA CM.508 M4A1 S-System AEG is a fine choice! This battery-powered AEG is made from ABS polymer with an alloy outer barrel and an upgradable version 2 gearbox. This makes the build light and easy to move with while staying competitive on the field, ideal for younger skirmishers or those after a lightweight primary for “easy mode” fun!

The alloy version 2 gearbox features robust steel gears, a type 2 cylinder, and reinforced polymer compression parts. Also inside is a 6.04mm tightbore inner barrel and an adjustable HOP-up unit, giving you above-average accuracy. This, the “Gen.2”, features the CYMA V2 MOSFET system, preventing trigger lockups while boosting trigger response, and a quick-change spring guide for easy power tuning.

On the outside, the CM.508 is ready for 20mm Picatinny accessories such as red dot sights, scopes, flashlights, lasers and grips, ready to be customised. The barrel has 14mm CCW male threads, meaning suppressors and tracer units can be added for stealthy looks or CQB dominance. The set even includes 2 x 300 BB high-cap mags, giving you ample firepower right out of the gate. If you want to get stuck in on a limited budget, the CYMA Sport Gen.2 CM.508 M4 S-System AEG is the best option out there!

£89.56 Pack price
Normally £89.99
Save £0.43
Code:
  • MIL-PRF-32432 Rated
  • Rubber nose piece
  • Smoked or clear lens

If you need a low-profile pair of ballistic glasses, these are for you! The PYRAMEX Anti-Fog Itek® Ballistic Eyewear has a rubber nose piece, providing superior comfort when it's time to equip these safety specs. The 9.75 base curved lens provides side protection without any seams or side shields.

The polycarbonate lenses are rated MIL-PRF-32432 and ANSI/ISEA Z87.1-2020 + High Impact. This means they are strong enough to withstand the force of BBs, making them safe for Airsoft; however, as they do not seal, it is advised that you only use them for target shooting or practising.

£4.60 Pack price
Normally £9.99
Save £5.39
Code: DA-BB-EGL-BIO-025
  • 1KG Bag: 4000 BBs approx.
  • Biodegradable BBs - Mag dump guilt-free
  • 0.25g - Ideal for any situation

If you're looking for affordable 0.25g BIO BBs, the Delta Armory 0.25g BIO EAGLE™ BBs; 1KG Bag is ideal. Supplied in a resealable bag of 4000, these BIO BBs are made from biodegradable PLA polymer, which allows you to magdump all day long with a clear conscience out in the wonderful woodlands.

EAGLE™ BBs are a more affordable alternative to Delta's Diamond BBs, boasting tight tolerances of only +/- 0.01mm maximum size deviation between each BB. Their high-polished surface ensures feeding is reliable and accuracy is on point, especially when used with a tightbore barrel. If you need BIO BBs which won't break the bank, look no further!

£6.80 Pack price
Normally £10.99
Save £4.19
Code: LC-2S633090C-2W
  • 7.4V 2S LiPo
  • 25C Discharge rate
  • 1500mAh Capacity

If you're looking for a battery for an AR36 or SMG-5 handguard, this is the one! The Giant Power 7.4V 1500mAh 25C LiPo Flat Nunchuck Battery is ideal for AEG handguards and fixed stock, measuring approximately 9.5cm x 2.8cm x 0.6cm (per cell) with a 5cm wire length, and is pre-wired to a Deans/T-plug connector.

This 7.4V LiPo consists of 2 cells configured as two cell groups, with a 25C continuous discharge rate and a capacity of 1500mAh.

£9.78 Pack price
Normally £12.99
Save £3.21
Code: SPE-07-047768-00
  • LiPo balance charger
  • Charges 7.4V or 11.1V LiPos
  • UK Power supply included

If you're after an affordable LiPo charger which won't make you scratch your head, the Specna Arms EASY LiPo Battery Charger is the way to go! A simple balance charger capable of charging both 7.4V and 11.1V LiPo batteries, the EASY charger makes things exactly that, supplied with a UK power supply and with charging status indicated by LEDs on the top of the housing. 

£7.92 Pack price
Normally £19.99
Save £12.07
Code: HAST-CHRG-BAG
  • Velcro closing flap
  • Suitable for all batteries
  • Safety first!

Ensure your safety when charging your Airsoft batteries. If it goes wrong, it really goes wrong... In reducing the chances of damage in the event of a Battery fire, the HASTA Safe Charging Bag is significantly cheaper than replacing your home would be.

The colour of the charging bag has no impact on functionality, and due to supplier changes, colour choice is not available. You'll receive either Silver, Red, or Black at random.

£1.33 Pack price
Normally £7.99
Save £6.66

Description

The Package

The CM.508 M4 S-System AEG is a lightweight polymer battery-powered M4 replica with semi-auto and full auto fire modes. It's based on the Tokyo Marui M4 internal design, meaning aftermarket upgrades are plentiful, as are parts for repairs and customisation.

With 20mm Picatinny rails on the handguard and receiver, the CM.508 is ready for any 20mm Picatinny accessories you choose to mount, including red dot sights and scopes, vertical and angled foregrips and even lasers and flashlights for CQB scenarios. The barrel is also threaded to 14mm CCW, meaning you can add a tracer unit or suppressor if the mission requires it. We've been very impressed with the performance-to-price ratio of the CYMA Sport series, and while they may be cheaper than alternatives, they are still competitive in game!

The included 7.4V LiPo Battery will improve trigger response, rate of fire and longevity when compared to 8.4V NiMh batteries. The included LiPo  balance battery charger is simple and safe to use, especially when paired with the Battery Safe Charging Bag.

Delta Armory's 0.25g BBs are some of the best on the market, great for both indoor skirmishes at close range, outdoor engagements or long-range target shooting. Being a bag of 1KGs worth, you should be able to get quite a lot of trigger time in before you need to reload, even if you've got a heavy trigger finger!

PYRAMEX' Anti-Fog Itek® Safety Glasses are easily capable of withstanding Airsoft projectiles and keeping you safe while you shoot. We do, however, recommend getting a lower or full face mask if you're planning on attending skirmishes.

Built to make Airsoft more affordable than ever before, this Airsoft beginner bundle includes everything you'll need to get started with safety as a priority!

Why you'll love it

  • Ready to play: Includes battery, charger, BBs, and a High-capacity mag - No need to buy extras to get started.
  • Easy to upgrade later: Standard Tokyo Marui spec parts and a Version 2 gearbox make future upgrades straightforward and parts easy to source.
  • Good accuracy out of the box: Tightbore barrel + Rotary HOP-up + 0.25 g BBs = Better groupings, range and efficiency for typical outdoor/indoor play.
  • Light and robust: Fibre reinforced polymer keeps its weight manageable for long skirmishes while being scratch-resistant and tough enough for regular use. Add a metal body later if you want more realism.
  • Customisable: 20mm Picatinny rails let you add a sight, torch or foregrip easily, without special tools.
  • 12-Month Warranty: We've got you covered for faults within the first 12 months of use. Find out more in our Warranty Terms and Conditions

Suggested accessories

Quick Start Guide

  • Charge your Battery: Place your battery inside your Battery Safe Charging Bag. Next, plug your charger into a 3-Plug UK wall socket and connect the Balance connector (small white connector) to the corresponding socket on your LiPo balance charger. Some balance chargers also require you to connect the power cable (Deans or Mini-Tamiya). Your charger will cut off when your battery reaches capacity, but you should never leave it on charge unattended. 
  • Load your magazine: Open the feed hatch on the top of your High-cap magazine. Pour BBs in until full.
  • Wind your magazine: Wind the wheel on the bottom of your magazine 5-10 times or until the noise changes and the wheel becomes firm.
  • Put on your Eye Protection: Safety when using Airsoft guns should be your number 1 priority. Always wear eye protection before loading your AEG and ensure any spectators are also protected.
  • Connect your battery: Remove the lower handguard by turning the polymer screw-style locks on each side by 270 degrees (to the rear of the side rails, next to the small embossed padlock symbol). When this is done, the mock screws will lift under spring pressure and allow the lower handguard to slide forward. Inside, you'll find a male Deans battery connector. Connect this to the female Deans connector on your battery.
  • Insert your magazine: With the fire selector switch set to "SAFE" and the barrel pointed in a safe direction with your finger off the trigger, insert your magazine by pushing it up into the magazine well.
  • You're now ready to shoot! - Never shoot at animals or humans who aren't in an Airsoft skirmish

Specification

Bundle Category
Assault Rifle

General

Weapon Construction External
Platform Type
Assault Rifle
Over 18 Only Icon
Over 18
Yes
Package
Included Items
Gun, BBs, Battery, Battery Charger, Safe Charging Bag, Protective Goggles,
Skill Level Icon
Skill Level
Beginner Player

Weapon Specific

Platform
Platform
M4 / AR-15 / M16
Power Source Icon
Powered By
Electric

Further Information

FAQ

Q: What Ammo/BBs do I need?

A: You'll need 6mm plastic Airsoft BBs between 0.20g and 0.28g in weight. This bundle includes 4000 x 0.25g BBs, which is plenty for a full day of outdoor play or several short CQB sessions. Never attempt to shoot any form of metal ammo or "paint" ammo, as these are not designed for Airsoft AEGs and will cause internal damage.

Q: What battery do I need?

A: This Beginner Bundle includes the correct 7.4V LiPo battery and a LiPo Balance charger for the CYMA Sport Gen.2 CM.508 AEG. We chose a LiPo battery to provide the extra power required for the Gen.2 CYMA MOSFET.

Q: How old do I need to be to buy and use an Airsoft gun?

A: Airsoft guns can be legally purchased by anyone over 18, but can be used by anyone of any age. We recommend adult supervision for users under 14 years old, at the parents' discretion. Most skirmish sites have a minimum age of 14 or over for attendees, some of which require under-18s to attend with an adult.

Q: Can I buy this for someone else?

A: Yes, provided you are over 18 and either have a Specific Defence under the VCRA, or choose a "Two-tone" colour variant.

Q: Do I need a UKARA or a License?

A: Not necessarily. You’ll need a UKARA membership or other valid defence under the VCRA to buy realistic colours (Black, Tan, etc.). Two-tone options can be purchased without UKARA. There’s no license required to own or buy Airsoft guns.

Q: Does it hurt to get shot with this?

A: It can sting, similar to a rubber band snap on bare skin, but less than a paintball. The sensation depends on distance, clothing, and protective gear. Airsoft guns produce muzzle energy around 1/14th of the average Paintball Marker, so hits hurt far less than hits from paintballs.

Q: Is an Airsoft gun dangerous?

A: Only if misused. Airsoft guns must never be brandished in public or in an area visible from public land. When transporting an Airsoft gun, ensure it is unloaded and concealed in a gun bag or case. When shooting, both the shooter and any spectators must use eye protection. It is also important that you don't shoot at targets beyond your property boundary. For more information on Airsoft Safety, check out our Airsoft Safety Guide.

Customer reviews

5 / 5
2 reviews for CYMA CM.508 M4 S-System Beginner Bundle
Reviews.io customer reviews
Anthony Seal
Anthony Seal
Written on 29/01/2026
Very good value, robust build, excellent accuracy. Only downside is that it comes with no instructions other than basic don't shoot people. Took a little time to find the battery location, in the forestock rather than the usual location in the butt.
Rated 5 out of 5
PAUL NEED
PAUL NEED
Written on 06/10/2025
Great value and fast delivery . Thanks
Rated 5 out of 5