Double Eagle M4 AEG with Underbarrel Tri-Shot Launcher - Black
Double Eagle M4 AEG with Underbarrel Tri-Shot Launcher - Black
M813 • 2-in-1 Airsoft Platform • Electric M4 + Spring Tri-Shot Shotgun • Battery & Charger Included
Get two airsoft firing systems in one distinctive platform with the Double Eagle M813 M4 AEG with Underbarrel Tri-Shot Launcher. This combination airsoft gun pairs a full-size M4-style low-power electric rifle with an integrated masterkey-style spring-powered tri-shot shotgun.
The primary M4 platform offers semi-automatic and full-automatic firing modes, while the underbarrel pump-action shotgun provides a separate tri-shot system capable of firing three 6mm BBs at once.
A battery and charger are included, helping provide a more complete out-of-the-box package for players getting started with electric airsoft.
Overview
The Double Eagle M813 combines two independent airsoft systems into a single M4-style platform. The primary rifle is a low-power electric gun (LPEG) powered by an included 8.4V NiMH battery and equipped with Safe, Semi-Automatic and Full-Automatic firing modes.
Mounted beneath the rifle is a masterkey-style spring-powered pump-action tri-shot shotgun. Rather than functioning as a conventional 40mm grenade launcher, this underbarrel system fires three airsoft BBs simultaneously when loaded and operated as designed.
The M4 portion features an adjustable hop-up system, retractable LE-style stock, removable carry handle with integrated rear sight, triangular front sight and extensive 20mm Weaver/Picatinny-style rail space.
Reinforced polymer construction and polymer LPEG gearing help keep the complete combination platform at approximately 4.7 lbs.
Key Features
- Unique 2-in-1 M4 and tri-shot shotgun configuration
- Double Eagle M813 platform
- Full-size M4-style electric airsoft rifle
- Low-Power Electric Gun (LPEG) design
- Safe, Semi-Automatic and Full-Automatic firing modes
- Integrated underbarrel spring-powered shotgun
- Tri-shot shotgun fires three BBs per trigger pull
- Pump-action shotgun operation
- Detachable shotgun magazine system
- Adjustable hop-up on M4 rifle
- Adjustable hop-up listed for underbarrel shotgun
- 240-round M4 magazine included
- Reinforced polymer LPEG gears
- Retractable LE-style stock
- 20mm Weaver/Picatinny RIS-style handguard
- Rail covers included
- Top accessory rail
- Removable carry handle
- Integrated rear sight
- Triangle-style front sight
- Sling mounting point
- 8.4V 650mAh NiMH battery included
- Battery charger included
- Black tactical finish
Technical Specifications
Why Choose the Double Eagle M813?
The defining feature of the M813 is its 2-in-1 configuration. Instead of carrying only a conventional M4-style electric rifle, the M813 adds a completely separate pump-action tri-shot airsoft shotgun beneath the barrel.
This combination allows the user to switch between the electric rifle's semi/full-auto operation and the spring shotgun's three-BB discharge.
With a battery, charger and magazine included, the M813 also provides a convenient package for newer airsoft players looking for something different from a standard M4.
Understanding the LPEG Platform
Important: The M813 is classified as an LPEG (Low-Power Electric Gun). It should not be confused with Double Eagle's higher-end metal-gearbox AEG platforms.
LPEG construction emphasizes affordability, lighter weight and ease of use rather than the internal construction and upgrade potential found in higher-end skirmish AEGs.
Ideal For
- Newer airsoft players
- Recreational airsoft shooting
- Backyard target shooting where legally permitted
- Plinking and target practice
- Players wanting a unique M4-style platform
- Masterkey-style airsoft loadouts
- Players interested in a 2-in-1 airsoft gun
- Casual CQB-style recreational use
- Airsoft collections and display setups
Two Independent Firing Systems
M4 Electric Rifle: The primary rifle is powered by the included rechargeable NiMH battery. The selector allows Safe, Semi-Automatic and Full-Automatic operation.
Underbarrel Tri-Shot Shotgun: The lower unit is spring-powered and manually operated. Pump the shotgun to cock the spring, then pull its trigger to discharge three BBs simultaneously.
Because the shotgun is mechanically spring powered, it does not depend on the M4's battery to operate.
Gray Dragon Field Tips
- Charge the included NiMH battery according to the charger's instructions before first use.
- Use quality seamless 6mm airsoft BBs to help maintain consistent feeding.
- Adjust the M4 hop-up gradually rather than making large adjustments at once.
- Practice switching between the electric rifle and underbarrel shotgun controls before gameplay.
- Always fully cycle the shotgun's pump action before attempting the next shot.
- Do not force the pump, magazine or selector controls if resistance is encountered.
- Treat the M813 as an entry-level/recreational LPEG rather than assuming compatibility with upgrades intended for full metal-gearbox AEGs.
- Always chronograph the airsoft gun and verify your field's current FPS and engagement rules before gameplay.
Why Buy From Gray Dragon Airsoft?
- U.S.-Based Online Airsoft Retailer
- Carefully selected airsoft guns, gear, parts and accessories
- Detailed product information designed to help you choose the right gear
- Clear specifications without unnecessary marketing fluff
- U.S. shipping
- Customer-focused product support
- Gray Dragon Airsoft — Gear Up. Play Hard.
Package Includes
- 1x Double Eagle M813 M4 Electric Airsoft Rifle – Black
- Integrated Underbarrel Tri-Shot Shotgun
- 1x 240-Round M4 Magazine
- 1x 8.4V 650mAh NiMH Battery
- 1x Battery Charger
- RIS / Picatinny Rail System
- 2x Rail Covers
Frequently Asked Questions
What model is this Double Eagle M4?
This combination airsoft platform is the Double Eagle M813.
Is the Double Eagle M813 an AEG?
The M4 portion is an electric airsoft rifle and is more specifically classified as an LPEG, or Low-Power Electric Gun.
Is the underbarrel launcher actually a shotgun?
Yes. Although its appearance resembles an underbarrel launcher, the lower unit is a spring-powered pump-action tri-shot airsoft shotgun.
Does the underbarrel shotgun fire three BBs at once?
Yes. The tri-shot system is designed to discharge three 6mm airsoft BBs simultaneously.
Does the M4 have full auto?
Yes. The electric M4 portion features Safe, Semi-Automatic and Full-Automatic firing modes.
Does the M813 have adjustable hop-up?
Yes. The M4 rifle features an adjustable hop-up system. Supplier information also lists adjustable hop-up for the underbarrel shotgun.
How many BBs does the M4 magazine hold?
The included M4 magazine has a listed capacity of 240 rounds.
What battery does the Double Eagle M813 use?
The M813 includes an 8.4V 650mAh NiMH battery with a Tamiya-style connection.
Are the battery and charger included?
Yes. Both the 8.4V NiMH battery and compatible charger are included.
Is the Double Eagle M813 LiPo ready?
No. The supplier specification for this model lists it as not LiPo ready.
How long is the Double Eagle M813?
The listed overall length is approximately 762mm to 863mm depending on the position of the retractable stock.
How much does the M813 weigh?
The complete platform is listed at approximately 4.7 lbs.
Can accessories be mounted on the M813?
Yes. The M4 features Weaver/Picatinny-compatible rail space for compatible airsoft optics and accessories.
Is this a good beginner airsoft gun?
The included battery and charger, straightforward electric operation and unusual 2-in-1 configuration can make the M813 an interesting entry-level recreational platform.
California Proposition 65 Warning
WARNING: This product may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Gray Dragon Airsoft Legal Notice
This is an airsoft product intended for responsible sporting and recreational use. It is not a toy. Always wear appropriate ANSI-rated eye protection and follow all field, manufacturer and safety rules.
Never brandish, display or use an airsoft replica in public or in any manner that could cause another person to reasonably believe it is a real firearm. Purchasers are responsible for understanding and complying with all applicable federal, state and local laws and regulations.
Double Eagle and related names, logos and trademarks are the property of their respective owners. Gray Dragon Airsoft is an independent retailer and does not claim ownership of third-party trademarks.
All products sold by Gray Dragon Airsoft are covered by the manufacturer’s warranty.
