JG S77 A2 "Begadi Upgrade Gen. 3" Semi AEG with Nylon Stock, Mamba Motor, Pro HopUp and Begadi CORE EFCS / Mosfet -olive- (18+)

Shipping possible from the age of 18 due to age check.

Possession permitted from the age of 18. This Airsoft is subject to the prohibition of carrying!
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Importer: Begadi
System: Sem i AEG (= electrically operated, only semi-automatic)
Caliber: 6mm
HopUp: yes, adjustable
Material: metal and nylon
Magazine capacity: approx. 120 rounds (MidCap, 2x included)
Energy:approx. 1.7 - 1.8 J.
Total length: approx. 800mm
Barrel length: 510mm / 6.03mm
Connector system: Dean/T connector
Gearbox: Version 3 reinforced with QSX
Weight: approx. 3400g
Scope of delivery: gun, 2x magazine, cleaning rod
Instruction manual (German/English) can be downloaded here as PDF!
PTB approval: Details see here
We have made further improvements to this model, these are:
Begadi Upgrade Gen.3:
- Begadi PRO HopUp Bucking & Tensioner is installed (already from Gen.2)
- Tappetplate has been optimized (already from Gen.2)
- The weapon is now delivered with 2x 120 rounds MidCap magazines (already from Gen.2)
- Improved feeding (25.00mm aluminum Nozzle)
- Begadi PRO Guardian Cylinderheads with Sorbopad is installed
- The 30K Mamba Motor has been replaced by the more efficient Mama 28K
Features:
- Stock made from robust nylon plastic
- Upper Receiver, Rail and Outerbarrel made of metal
- Front handle made of nylon (retractable)
- 2x Sling Swivel made of steel
- 14mm negative thread for Silencer and Tracer
- adjustable Rotary HopUp unit
- Weapon can be used on both sides
- Easy disassembly like the original
- internal EFCS/Mosfet (Begadi CORE)
- Spring change possible without removing the Gearbox
- 6.03mm tuning barrel
- Nozzle with 25.00mm
- Begadi Mamba 28K Balanced Motor with neodymium magnets
- 21mm mounting rail (positions differ from Picatinny standard!)
- Dismountable rear sight & front sight (low quality, we advise against use)
Internals:
- V3 Gearbox with 8mm Bushings and QSX
- QSX possible directly via Stock, Gearbox does not have to be removed
- 25.00mm aluminum Nozzle with O-ring
- Ventilated CNC aluminum Pistonheads with Bearing
- Piston with 15 steel teeth
- Begadi PRO Guardian CNC Cylinderheads made of aluminum with sorbo pad
- Reinforced tappet plate
- M120 Springs
- Steel Springguide
- Steel Gears with 18:1
Begadi PRO Guardian CNC Cylinderheads:
This CNC machined Cylinderheads from the PRO series improves the air volume and reduces the volume thanks to the new design. Due to the missing O-ring between Gearbox and Cylinderheads, it can also be used with stronger Springs. The optimized sorbo pad not only serves to absorb shocks, but also seals off the Cylinder. The lip on the outside expands due to the pressure in the Cylinder and is pressed against the wall of the Cylinder. This Cylinderheads is also compatible with our Begadi PRO and Tight-Fit Nozzles
Information on the Motor:
- HighTorque / Balanced Motor
- Speed: 28,000 rpm
- TPA: 19
- Torque: 4.6 kg/cm
- Current (peak): 62A
- Magnets: Neodymium
Begadi PRO HopUp:
- This SAEG comes directly with a Begadi PRO HopUp rubber (FYL5 60°) with matching Tensioner
- We recommend using 0.25 - 0.32g BBs
Storage information:
Always disconnect the battery from the gun when it is not in use! Otherwise your battery can be discharged by continuous monitoring and thus be damaged

- Internal EFC/Mosfet system
- Trigger via microswitch
- Mechanical fuse
- Cycle monitoring (no GearJam possible)
- Battery monitoring (LiPo, LiFe, Li-Ion)
- Battery cut-off (LiPo, LiFe, Li-Ion)
- Fast response behavior
- Intelligent active brake
- Also for powerful batteries
- Short-term load capacity up to 240A
- Overvoltage protection
- Protection against short circuit
- Plug & Play
- Dean / T-plug
- Semi-only, especially for Germany
- Optimized for 7.4V & 11.1V batteries
- Made in EU
Detailed information on the individual features can be found on our Begadi CORE EFCS / Mosfet info page.
Suitable batteries (examples, other batteries with the same dimensions also fit):
We recommend the use of 11.1V batteries
- Begadi "AMAX Superio" LiPo battery 11,1V 1500mAh 30/60C+ "Compact Triple Stick" -gold colored-
- Begadi "AMAX Superio" LiPo battery 11,1V 1500mAh 30/60C+ "PEQ" -gold colored-
- Begadi "AMAX Superio" LiPo battery 7,4V 1200mAh 30/60C+ "Single Stick" -gold colored-
- Begadi "AMAX" LiPo battery 11,1V 1100mAh 20C "Compact" Single Stick -beige-
- Begadi "AMAX" LiPo battery 7,4V 1100mAh 20C Single Stick
- Begadi "AMAX" LiPo battery 7,4V 2200mAh 20C Double Stick
Required connector type: Dean
Information on suitable magazines:
We have checked some magazine types for compatibility to give you an indication of which magazines the model harmonizes well with and which less well.
- JG S77 MidCap magazine (120 BBs): Fits, feeds well.
- Battleaxe AUG LowCap magazine (80 BBs): Fits well, slight play, slight feeding problems towards the end.
Available original spare parts:
- JG S77 HopUp Unit incl. rubber / Bucking
- JG S77 rubber butt plate
- JG S77 mounting for Receiver incl. screws
- JG S77 Safety catch incl. Spring
- JG S77 Magazine Catch made of plastic incl. Spring
- AUG spare parts (store category)
Accessories:
- Begadi PRO CNC Alu Adjustable Speed Trigger Kit for JG S77 series
Videos & Reviews of the Gen 1:
- JG S77 A2 "Begadi Upgrade" Semi AEG with Nylon Stock, Mamba Motor, QSX and Begadi CORE EFCS / Mosfet Video Review (YouTube, REAPERs Airsoft)
- JG S77 A2 + DMR "Begadi Upgrade" Semi AEG with Nylon Stock, Mamba Motor, QSX and Begadi CORE EFCS / Mosfet Video Review (YouTube, TEAM-030-AIRSOFT)
- JG S77 DMR "Begadi Upgrade" Semi AEG with Nylon Stock, Mamba Motor, QSX and Begadi CORE EFCS / Mosfet Video Review (YouTube, Airsoft Team Raptor)
- JG S77 A2 "Begadi Upgrade" Semi AEG with Nylon Stock, Mamba Motors, QSX and Begadi CORE EFCS / Mosfet Video Review (YouTube, Kays Airsoft)
- JG S77 A2 "Begadi Upgrade" Semi AEG with Nylon Stock, Mamba Motor, QSX and Begadi CORE EFCS / Mosfet Video Review (YouTube, Angry Unicorns Airsoft)
Exterior views (complete) of the JG S77 A2 "Begadi Upgrade Gen. 3" Semi AEG in od-green:







Detail views of the JG S77 A2 "Begadi Upgrade Gen. 3" Semi AEG in od-green:




















Magazine pictures of the JG S77 A2 "Begadi Upgrade Gen. 3" Semi AEG in od-green:









Internals images of the JG S77 A2 "Begadi Upgrade Gen. 3" Semi AEG in od-green:







































Scope of delivery of the JG S77 A2 "Begadi Upgrade Gen. 3" Semi AEG in od-green:
