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Airsoft Replica EC-903 Advanced Edition (upgraded gearbox, programmable ETU) - Black [E&C]

East Crane  EC903-1 | kcots fo tuO
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  • Technical data

    Manufacturer: East Crane
    Code: EC903-1
    EAN 5904420008286
    Weight 3320 g
    Replica Model SR25 / AR10 Airsoft Gun
    Color black
    Material aluminum, metal, polymer
    Magazine model mid-cap
    Fire mode single
    Accumulator included in set NO
    Accumulator connector type T-connerctor
    Gearbox version v.2 extended
    Bearings type steel ball-bearing
    Bearings diameter 8 mm
    Warranty period 12 months
    Hop up adjustable
    Camouflage Black
    Barrel thread type counter-clockwise
    Ammo .28g, .30g
    Serial number YES
    Length 890-970 mm
    Magazine capacity 130 BBs
    Length of internal barrel 362 mm
    Muzzle energy 1.8 J
    Muzzle velocity 460 FPS with 0.20g BBs
    Barrel thread diameter mm 14
    Diameter of Internal barrel 6.04 mm
    ETU MOSFET YES
    Body material metal

  • Reviews

    • - 10.07.2026 wrote:
      This replika absolutely exceeded all my expectations, it is a full-metal body with premium finish and it also has preinstalled ETU which is amazing combination for this price category. It is also a great gun to upgrade into a DMR, which I plan on doing, because it has elongated gearbox and out of the box it was cosistently shooting 1.7-1.8J with 0.30g BBs. It also has a shorter inner so replika isnt too long and is also something that's good for a DMR build. The gears inside were screeching which indicats they are not shimmed properly, but if you choose the shimming option you have an incredible out of the box rifle.

      I used this replika in my last game and I totaly dominated long range fights as it can handle heavy BBs it shoots really far and if you also pair it with a scope it's a litteral semi sniper. I was watching BBs from enemy players falling before me as I was shooting and hitting them.
      Opinion rating: 0
    • - 05.06.2026 wrote:
      I’ve been using the East Crane EC-903 as the base for a custom HPA build with a ManCraft PDiK engine, and I have to say I’m extremely impressed with the platform.

      The standout feature of the EC-903 is undoubtedly its external build quality. The rifle feels solid, well-constructed, and far more premium than its price point would suggest. The full-metal receiver, sturdy M-LOK handguard, and overall fit and finish make it an excellent choice for anyone looking to build a realistic DMR or battle rifle. The rifle has a great weight balance and looks fantastic both on the field and as a display piece. The attention to detail on the externals is one of the main reasons I chose it for my project. This reputation for strong externals is also commonly echoed within the airsoft community.

      Since I converted mine to HPA using a ManCraft PDiK, I can’t comment much on the long-term stock gearbox performance. However, as a build platform, the EC-903 is excellent. The receiver set is rigid, everything aligns properly, and installation of aftermarket parts was straightforward. It provided exactly the kind of reliable foundation I was looking for in a custom DMR build.

      I appreciate is the SR-25/AR-10 realistic appearance without the premium price tag associated with some higher-end brands. Whether you’re building a designated marksman rifle or simply want a robust 7.62-style platform, the EC-903 delivers.

      Overall, I would highly recommend this rifle to anyone looking for a solid base rifle for upgrades, especially HPA conversions. If external quality and realism are your priorities, this rifle punches well above its weight class. My ManCraft PDiK build has turned out exactly how I hoped, and the EC-903 deserves a lot of the credit for that.
      Opinion rating: 0
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Precise DMR rifles — Check out the other products in the series

EC903-1 Replica is a semi-automatic sniper rifle that combines precision with solid construction. Made almost entirely of metal, it offers durability and realism, while the M-LOCK handguard with RIS rail allows for the attachment of accessories such as flashlights or scopes. The integrated Eshooter programmable Mosfet enables programming modes like Pre-cocking, Active Brake, and configuring fire modes (semi, binary), and the long-type V2 gearbox with a quick spring change system provides exceptional performance and reliability. Additionally, it is equipped with a rotary hop-up chamber with an upgraded bucking and a dedicated spacer.

Semi-Automatic Sniper Rifle Replica

Enhance your airsoft experience with the EC903 replica - a semi-automatic sniper rifle that combines unmatched precision with solid construction. Thanks to the use of high-quality materials, this replica is an excellent choice for both professional players and beginners.

Construction and Durability

The EC903 replica is exceptionally solid and well-balanced. Most of the components are made of metal, ensuring durability and realism. Metal parts include the flash suppressor, barrel, 15-inch M-LOCK handguard, sights, body, charging handle, stock guide, and controls. Meanwhile, the pistol grip and stock are made of high-quality polymer, contributing to optimal comfort during use.

Functionality and Application

The long M-LOCK handguard with RIS rail allows easy attachment of various accessories such as flashlights, grips, bipods, scopes, or red dots. The integrated QD mount in the M-LOCK handguard and stock allows for quick attachment and detachment of the sling, which is ideal for providing the user with more freedom to customize the replica to their preferences.

Performance and Mechanics

The EC903-1 replica is equipped with the integrated Eshooter Mosfet, which ensures better responsiveness and protection for the electronics. Inside the replica, there is a dedicated long-type V2 gearbox, which is compatible with TM standards, allowing for quick spring changes. The system features steel gears mounted on 8mm ball bearings, contributing to smooth operation and the longevity of the replica. Compression is ensured by a long type 0 cylinder, and the piston has metal teeth, increasing resistance to damage and ensuring long-term use.

Eshooter Mosfet

The protection of wires and the ability to program different fire modes are provided by the Eshooter ETU Basic system. Taiwangun, in collaboration with Eshooter, ensured that the EC903 model closely mirrors the original. As a result, the rifle is defaulted to single fire in SEMI mode. The Mosfet also acts as a current regulator and offers the following features:
  • Easy programming: The setup process requires only 3 steps, and resetting the settings occurs by holding the trigger for 8 seconds.
  • Pre-cocking: Adjusting the pre-cocking mechanism: Choose from 5 levels of pre-cocking the piston. The Eshooter Basic system has a learning function that automatically adjusts the stop position based on speed and load. After reconnecting or disconnecting the battery, a single pull of the trigger may result in several rounds being fired.
  • Brushless motor support: The system supports brushless motors as well as high-speed and high-torque motors.
  • Long durability: The replica works reliably even after more than 50,000 shots.
  • Active Brake: A feature preventing gearbox instability, which stops the piston in the forward position, enhancing the longevity of gears and other internal parts.
  • Motor lockout protection: Active protection against damage to gears in case of malfunction in the gear and motor system.
  • Battery low voltage protection: When the battery is low, the motor vibrates 5 times, and the blue LED flashes 5 times.
  • High/low voltage protection: The system automatically detects the number of cells in the lithium battery. A 2-cell battery supports a minimum of 6V, and a 3-cell battery supports a minimum of 8.5V, with maximum support up to 17V.
  • Precise shooting is ensured by a 6.04mm diameter barrel and reinforced rotary polymer hop-up chamber. Additionally, to facilitate hop-up adjustments, the rifle is equipped with a functional bolt catch.

The Set Includes:

Recommended products:

Every replica undergoes a zero inspection. It is checked and chronographed with the XCORTECH X3200 chronograph.


Safety & Usage Guidelines

Please read the following information for safe product use:
SKU: EC903-1 · EAN: 5904420008286 · Airsoft Replica EC-903 Advanced Edition (upgraded gearbox, programmable ETU) - Black [E&C] ·
Report safety issue · Responsible person & manufacturer
Responsible person & manufacturer
Responsible person for product placed on the EU market:
KRAKMAN P. Kiepura, K. Michalik sp.k. · Pollanki 18, 30-740 Krakow, Poland · [email protected]
Manufacturer:

REPLICAS AVAILABLE ON TAIWANGUN.COM MIGHT BE PURCHASED ONLY BY ADULT USERS. PRODUCTS FOR ASG AND MILSIM USE ONLY.

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