CYMA CM.515 M4A1 Carbine w/ KeyMod Handguard

  • Great Starter Gun
  • Multi-Position Stock
  • Mock KeyMod Handguard

A great for beginner Airsoft Skirmishers and Back garden Plinkers. The weapon is constructed from mostly Polymer with some alloy and features KeyMod Style Rail. The gun features a top rail for attaching sights and scopes, and front rails for attaching grips, torches, lasers and and a huge range of aftermarket parts and accessories.

This is the perfect weapon for any Beginner Airsoft Player, or for those who just simply want to shoot in their back garden. Coming in at a great price for any starter Airsoft skirmisher the gun has plenty of room for aftermarket external upgrades to make the gun unique and truly yours.

Full description


The weapon features a Mock KeyMod Style Rail System, which comes with a full top-length 20mm RIS / RAS Rail, allowing you to attach a variety of sights and scopes to the weapon, giving plenty of customization options. We would recommend that you grab yourself a red dot or holographic sight, but the rail is also long enough for attaching zoomed sights and scopes should you want one. The weapon also has two front side rails designed for Torches, Lights and Lasers as well as a front bottom rail for Grips and Bi-pods. The body of the gun features a functional mock charging handle which is used to expose the Hop Up.

The end of the barrel features a removable mock flash hider which reveals a 14mm CCW threaded outer barrel allowing you to attach a wide range of Airsoft suppressors and tracer units to give the replica more unique or more tactical look.

Internally the replica features full metal V2 gearbox, with a polymer piston and reinforced steel 8mm bearings for extra reliability, and a 6.03mm inner barrel for range and accuracy. The gun also features a fully adjustable hop-up unit, allowing the amount of spin placed on the BB to be adjusted giving the gun a longer range. The hop up unit works by pushing a small contact patch of rubber into the path of the BB before it travels down the barrel, causing the BB to spin. This spin creates a cushion of air as it travels, giving the BB a more stable and accurate trajectory.

The weapon features a multi-position Adjustable Stock which can be adjusted to accommodate for different height users, and features a rear sling plate, allowing a variety of slings to hold your gun should it be dropped or to free up both hands for activities. The Stock is of a 'Crane' Design, allowing a battery of up to 9.6v NiMH Crane Battery to be added, giving plenty of power and lifetime, and the battery compartment can be accessed by removing the rear rubber butt plate and sliding each stick down the slots at either side of the stock. 

This weapon is great as it accepts a variety of STANAG based Airsoft Magazine which are the most common in Airsoft, making it easy to buy spare magazine, and comes with a 300 round High Cap wheel wound magazine in the box to get you started. 


  • Perfect starter gun for beginners and for backyard plinking
  • Mock KeyMod style handguard / front rail for looks
  • Removable Flip-Up Front and Rear Ironsight
  • Full Polymer Lightweight Construction
  • Full Metal Gearbox
  • Full top length 20mm RIS / RAS Rail
  • Front Medium 20mm RIS / RAS Rail for Attaching Airsoft Grips and Bi-Pods
  • Two Side 20mm RIS / RAS Front Rails for attaching Torches and Lasers
  • Functional Mock Charging Handle to Expose the Hop-Up Unit
  • Hop-Up Unit hidden behind dust cover
  • Adjustable hop-up unit for range and accuracy
  • Multi-position Adjustable Stock
  • Stock can be removed and replaced with other new Airsoft Stocks
  • Rear Sling Mount Plate for attaching Slings
  • Removable 14mm CCW Flash Hider for attaching Tracer Units and Suppressors
  • Adjustable multi-position Crane Stock
  • Loops holes in the stock for attaching slings
  • Removable front and rear flip-up ironsight
  • Battery storage in the stock behind a removable butt plate perfect for up to a 9.6v NiMH Crane Stock Battery
  • Accepts a variety of STANAG Based / M4 Airsoft Magazines
  • V2 Gearbox with Alloy Shell
  • 8mm Bearings
  • Lightweight Polymer Piston
  • 6.03mm 680mm tightbore inner barrel

Package Includes

  • CM.515 M4A1 Carbine w/ Keymod Handguard
  • 300rnd High Capacity Magazine

Special Instructions

Please note that the rail is a KeyMod style, and will not fit KeyMod Parts.



Weapon Construction External
Weapon Type
Assault Rifle
Over 18 Only Icon
Over 18
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 330fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Screwdriver Icon
Included Items
Skill Level Icon
User Skill Level


Colour Wheel Greyscale
Primary Colour
Black, Tan ,
Colour Wheel Greyscale
Secondary Colour
Two Tone Icon
Pre Two-Toned
Construction Icon
Full Polymer receiver, pistol grip and stock with some alloy parts
Weapon Construction External
External Construction
Gearbox Icon
Internal Construction

Weapon Specific

Power Source Icon
Powered By
Blowback Icon
Weapon Platform
M4 / AR15 / M16
Magazine Style Icon
Magazine Style
Fire Select Icon
Fire Selector
PatrolBase | Fire Select Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Patrol Base | Full Automatic
Full Automatic
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Weapon Configuration
Weapon Scale Icon
Weapon Scale
Suggested BB Weight


Hop-Up Unit Icon
Hop-Up Unit
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
Hop-Up Unit Location Icon
Hop-Up Location
Behind mock Bolt cover, when charging handle to the rear


Weapon Furniture Icon
  • Flip-Up Ironsights
  • AR Buffer Tube
  • KeyMod Handguard
  • Railed Receiver
  • Sliding Stock
  • Standard
Rail System Icon
Rail System
20mm RIS / RAS , KeyMod ,
Icon Stock Positions
Stock Setting
Weapon Length Extended
Stock Positions
5 Position
Sight Type Icon
Sight Type
Aperture Iron Sight
Sling Plate Icon
Sling Options
Stock , Loop ,


Icon Thread Type
Outer Barrel Thread Type
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
Inner Barrel Diameter
Inner Barrel Length

Magazine Specific

Magazine Type
Magazine BB Capacity
Approx. 300 Rounds
Magazine BB Fill Method
Fill Window
Magazine BB Fill Location

Electric Gun Specific Information

Gearbox Icon
Gearbox Version
V2 Gearbox
Wiring Icon
Gearbox Wiring
Rear Wired
Spring Change Icon
Gearbox Quick Change Spring
Digital Trigger Icon
Gearbox Electronic Trigger
Airsoft Motor Icon
Motor Type
Battery Specific
Battery Connector
Patrol Base | Icon | Mini Tamiya
Mini Tamiya
Suggested Battery
Suggested Battery Type
Suggested Battery Configuration
Suggested Battery Voltage

Product Testing Data

Notepad Icon
Test Description
Tested using 0.2g BBs
Notepad Icon
Test Date

Related video

JamesTake2 - CYMA CM .515 M4A1 Carbine Review