CAA 10.5" M4 CQB

  • King Arms OEM
  • Steel Gears Inside
  • Quick Change Spring

An incredibly lightweight and well-performing Airsoft Electric Gun that is perfect for both beginners and experienced players who want to move around the field quickly, without a great heavy Airsoft Gun slowing them down. Featuring a 6.03mm Inner Barrel, Quick Change Spring and Steel Gears, there has been no scrimping on quality here! Those who have been around for a while will remember these being a staple of Airsoft AEGs, and we are pleased to say they are now available once again!

Full description


The CAA M4 series are made from a Nylon Fiber Polymer which is flexible and tough, and makes carrying the thing much easier for an all-day Airsoft Game. It is made by King Arms under license from CAA, which means that it retains its realistic CAA Trademarks on the side of the Receiver, magazine and Handguard. With both a 10.5" and 14.5" variant available, this Gun is ready for both Outdoor/Woodland play, as well as in tight, close-quarter arenas.

The Gun has plenty of tactical rail-space, and is ready for all manner of Airsoft accessories, from Grips and Torches, to Lasers and Grenade Launchers. A 20mm Railed Handguard allows the easy installation of tactical accessories, and the 20mm Rail on the Receiver can be used to mount Sights and Scopes for more precise aiming. This rail comes with a set of Flip Up Ironsights installed out of the box, which can be adjusted to align with your BB impacts, or aligned with a Red Dot Sight for emergencies (dead sight batteries). The Gun also features a multi-position Sliding Stock at the rear, which can be shortened or extended depending on the user, as well as a Solid Sling Loop for installing a Sling. There are several QD Sling Sockets around the Gun, allowing you to install Quick Release Loops for your Sling instead. An Ergonomic Pistol Grip fits the hand comfortably, and a 14mm CCW Thread under the Flash Hider (remove grub screw to take it off) accepts Suppressors, Tracer Units and other Muzzle Devices with ease.

The Gearbox is a Version 2 design and is Front-Wired, meaning your Battery should be installed at the front of the Gun, inside the Handguard. Simply pull back on the D-Ring Collar (at the front of the Receiver) and remove the top section of the Handguard to reveal a Mini Tamiya Connector inside. The Battery Space is ideally suited to a slim 7.4v LiPo Crane Battery.

Internally, the CAA M4 series do not compromise on quality. A set of Steel Gears on 7mm Bushings provide long life from the Gearbox, and a 6.03mm Inner Barrel will yield great consistency from your BBs. The Gun features a Quick Change Spring which means that you can easily change the Main Spring of the Gun without disassembling the Gearbox. This is great for those who like to tinker with their Airsoft Gun, or for those who play at a range of different sites, all with different power limits. A Gear-style Adjustable HOP Unit can be found behind the mock bolt, accessible by pulling back on the Charging Handle. This setting can be used to apply backspin to your BBs, and keep them in the air for longer.

Included in the CAA-branded box is a 140rnd Mid Cap Magazine, which is filled using an Airsoft Speedloader. If you're looking for a lightweight and easy to use Airsoft Gun from a reliable name, with a gorgeous tactical external design, then there really is no better choice than the CAA M4 Series.


  • Airsoft Electric Gun
  • M4/AR Platform Replica
  • Super Lightweight Build
  • Nylon Fiber Polymer
  • Quick Change Spring
  • 6.03mm Inner Barrel
  • Steel Gear Set
  • 7mm Bushings
  • 20mm Railed Handguard
  • 20mm Railed Receiver
  • 14mm CCW Threaded Barrel
  • Flip Up Ironsights (Adjustable)
  • Sliding Multi-Position Stock
  • Rubber Butt Pad for Grip
  • Rear Solid Sling Loops
  • Several QD Sling Sockets
  • Version 2 / Front Wired Gearbox
  • Gear Type Adjustable HOP Unit
  • Ergonomic Pistol Grip
  • Several CAA Trademarks
  • 140rnd Mid Cap Magazine
  • Secret Compartment on Stock
  • Safe / Semi / Auto Fire Selector
  • Perfect Beginners Gun
  • King Arms OEM
  • Mini Tamiya Connector

Package Includes

  • CAA 10.5" M4 CQB
  • 140rnd Mid Cap Magazine
  • User Manual



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. 315fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Included Items
  • Magazine
  • Instruction Manual
Skill Level Icon
User Skill Level

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 1.9kg
Weapon Length Collapsed
Length (Collapsed)
Weapon Length Extended
Length (Extended)


Colour Wheel Greyscale
Secondary Colour
Two Tone Icon
Pre Two-Toned
Construction Icon
Full Polymer construction w/ Alloy Fire Controls / Trim.
Weapon Construction External
External Construction
Gearbox Icon
Internal Construction

Weapon Specific

Power Source Icon
Powered By
Blowback Icon
Weapon Platform
AR Platform, M4 / AR15 / M16,
Magazine Style Icon
Magazine Style
STANAG, M4 / AR Platform,
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 when charging handle to the rear


Weapon Furniture Icon
  • Railed Handguard
  • Flip-Up Ironsights
  • Railed Receiver
  • Sliding Stock
  • Ergonomic Pistol Grip
  • Threaded Outer Barrel
  • QD Sling Point
Rail System Icon
Rail System
20mm RIS / RAS
Icon Stock Positions
Stock Setting
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
Iron Sights
Sling Plate Icon
Sling Options
QD , 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
Medium Capacity , AEG,
Magazine BB Capacity
Approx. 140 Rounds
Magazine BB Fill Method
Speed Loader
Magazine BB Fill Location

Electric Gun Specific Information

Gearbox Icon
Gearbox Version
V2 Gearbox
Wiring Icon
Gearbox Wiring
Front Wired
Spring Change Icon
Gearbox Quick Change Spring
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
Notepad Icon
Tested Using
ASG Blaster 0.2g BBs
Notepad Icon
Test Date

Detailed Power Tests

FPS, using 0.20g BB
Approx. 315fps, using 0.20g BB

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