Specna Arms Rock River Arms SA-C07 CORE M4 Carbine

Specna Arms
  • Full Top Length Rail
  • KeyMod Handguard
  • Adjustable Rail System

A brand new rifle built by Specna Arms as part of their CORE range of beginner rifles. With a KeyMod handguard and high quality build this rifle is the ideal starter weapon and has everything players new any old need in a rifle.

Full description


This is an electric powered Airsoft rifle which is powered by a motor and battery allowing for both semi automatic and fully automatic fire modes, and is built with high quality materials, with an alloy hand, outer barrel, flash hider, buffer tube and charging handle, with a polymer receiver, grip and stock. The rifle is a perfect balance between cost and performance, and is everything a beginner player and even a regular skirmisher wants in a rifle.

The weapon has plenty of room for aftermarket part attachment, supporting both 20mm RIS / RAS as well as KeyMod attachments. The top rail of the weapon is the full length of the rifle allowing for large and advanced sight and scope setups, and is 20mm RIS / RAS, the most common type for Airsoft attachments. The hand guard features KeyMod slots on the 3, 6 and 9 o'clock positions allowing for more modern attachments, and if you don't yet have any KeyMod attachable parts the set comes with KeyMod to 20mm RIS / RAS panels to allow your pre-existing kit to be attached. The panels can be moved up and down the handguard, and be positioned into optimal locations for best attaching accessories.

The set also comes with a pair of flip up Ironsights which are compatible with the 20mm rail which can be locked down in place and quickly released using the quick release button. This means that when not in use the sights can be kept at a low profile and flipped up when required. These style of sights are usually used on rifles with a holographic site, so that if the unfortunate happens and a sight becomes damaged or runs flat you can switch to your backup ironsights and keep fighting.

The rifle features a V2 gearbox which is rear wired to a Tamiya connector, the most common type of battery connector, meaning there are lots of options for aftermarket upgrades allowing the weapon to be upgraded and modified further down the line. The battery is stored in the stock of the weapon which is accessed by removing the rubberised butt plate, and has plenty of space for both 7.4v LiPo and Crane Stock Ni-Mh battery.

Internally the weapon has plenty of parts considered upgrades over a standard off the shelf Airsoft AEG, with a 6.03mm precision inner barrel to increase the weapons accuracy, and 8mm Bearings which support the gears along with a full steel racked piston for better performance and to increase the lifespan of the weapon.

The gearbox features Specna Arm's Enter and Convert system, which is essentially a quick change spring gearbox system. This allows you to quickly and easily swap the spring to a higher or lower powered unit to increase or decrease the FPS of your weapon by removing a large screw at the back of the gearbox. This allows you to adjust the power of the rifle to the site you wish to play at without having to take the gearbox entirely apart.

This rifle is perfect for any player looking to get into Airsoft skirmishing and want a rifle which comes in at a great price point but is also extremely skirmishable. This rifle is not only recommended for beginner players, but for regular skirmishers who are looking for another weapon, or as a great high quality base for future upgrades.


  • Part of the Specna Arms 'CORE' range of beginner rifles
  • Great starter rifle
  • Electric Powered Airsoft AEG
  • Specna Arms V2 Gearbox
  • Enter and Convert Quick Change Spring System
  • Adjustable Hop-Up unit for range and accuracy
  • 300rnd High-Capacity wheel wound magazine
  • 14mm CCW threaded outer barrel
  • KeyMod Railed handguard
  • KeyMod Rail sections at 3, 6, and 9 o'clock positions
  • Movable KeyMod to 20mm RIS / RAS Rail Panels
  • Full top length 20mm RIS / RAS Rail for attaching Sights and Scopes
  • Removable 20mm RIS / RAS push button Flip Up Ironsight set
  • Sound enhancing flash hider
  • Flat trigger guard
  • Finger ridged pistol grip for a more secure hold
  • 6 position buffer tube
  • Adjustable crane stock, which doubles up as the battery storage compartment
  • Rubberised butt plate to prevent slippage
  • Rear wired gearbox to mini-tamiya
  • 8mm Slide Bearings
  • Full steel piston rack
  • Lightweight polycarbonate plastic piston
  • 6.03mm precision inner barrel
  • Branding:
    • Rock River Arms logo
    • Colona, IL
    • CAL. 5.56MM
    • LAR-15
    • PAT0011703BAS

Package Includes:

  • Rock River Arms SA-C07 CORE M4 Carbine
  • Magazine
  • Flip-up Ironsight Set
  • Instruction 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. 340fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Screwdriver Icon
Included Items
  • Magazine
  • Instruction Manual
  • Ironsight Set
Skill Level Icon
User Skill Level

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 2.22kg
Weapon Length Collapsed
Length (Collapsed)
Weapon Length Extended
Length (Extended)


Colour Wheel Greyscale
Primary Colour
Colour Wheel Greyscale
Secondary Colour
Two Tone Icon
Pre Two-Toned
Construction Icon
Alloy Barrel, Handguard, Flash Hider, Charging Handle, and Buffer Tube with a Polymer Receiver, Grip, and Stock
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
Adjustable behind the mock bolt plate when the charging handle is to the rear


Weapon Furniture Icon
  • Railed Handguard
  • Flip-Up Ironsights
  • KeyMod Handguard
  • Railed Receiver
  • Finger Ridged Pistol Grip
  • Sliding Stock
  • Sound Enhancing
  • Monolithic Receiver
Rail System Icon
Rail System
20mm RIS / RAS , KeyMod ,
Icon Stock Positions
Stock Setting
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
Aperture Iron Sight
Sling Plate Icon
Sling Options


Inner Barrel Diameter

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
Front Wired
Spring Change Icon
Gearbox Quick Change Spring
Digital Trigger Icon
Gearbox Electronic Trigger
Split Gearbox Icon
Split Gearbox Design
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
Using 0.20g BB
Notepad Icon
Tested Using
Blaster 0.20g BBs
Notepad Icon
Test Date

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