Perun Mosfet / EFCS for G28/HK417 by VFC

Unlocked / INT

€144,99 EUR

Perun Mosfet / EFCS for G28/HK417 by VFC

Perun

3 left

€144,99 EUR

Taxes included.

Perun for G28/HK417 by VFC replaces the stock trigger block with a custom housing, featuring an integrated Clicker and Perun electronic board. It uses magnetic trigger detection and optical selector/sector gear detection for reliable operation and fast trigger response. The built-in adjustable Clicker lets you fine-tune pretravel, overtravel, and break force to your preference — the final upgrade to turn your VFC replica into a true airsoft DMR or battle rifle.

Features:
- Firing modes: SEMI ONLY, BINARY, SEMI-AUTO, SEMI-BURST, BURST-AUTO
- Custom cut-off lever with optical sensors for reliable semi fire
- Adjustable Clicker (pretravel, overtravel, break force)
- Adjustable trigger sensitivity
- Active brake with adjustable braking power
- Precocking with spring release
- Rate of fire reduction
- DMR mode
- Low battery alarm
- Multicolor LED programming
- DSG mode
- Diagnostic system
- Electronic resettable fuse

SEMI ONLY / DE: Restricts to semi-auto only (required for replicas in Germany with muzzle energy above 0.5 J).

Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.

We accept a return for any reason 30 days after arrival, as long as the product is unopened and undamaged.

Many of our products are made to order, so our fulfillment times may differ. If a product is in stock and produced, we send it out asap (1-3 days). Lead times for products that need to be manufactured can be between 7-14 days.

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.

Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

Feature Overview

Adjustable Clicker

Simulates a real firearm trigger by requiring a set force to "break" before firing. Break force, pretravel, and overtravel are all fully adjustable, including reducing break force to zero.

Adjustable Trigger Sensitivity

8 sensitivity levels for both trigger stages, adjusting the pull length required to fire. No hardware modifications needed — can be changed in the field.

Selectable Firing Modes

Choose modes for short or long trigger pull: SEMI ONLY, BINARY, SEMI-AUTO, SEMI-BURST, BURST-AUTO.

Active Brake

Stops the motor after each shot to prevent unintended spring compression or overspin (double shots) in high-ROF replicas.

Precocking

Keeps the piston cocked after each shot for instant trigger response. To release the spring, hold the trigger for 2 seconds — a second shot fires without precocking, then fully brakes.

Binary Trigger

In semi-auto mode, fires on both trigger pull and release for easy double shots. (Not available for SEMI ONLY / DE Version)

Rate of Fire Reduction

Limits ROF in auto or burst mode to save ammo or improve realism.

DMR Mode

Enforces a minimum interval between shots (0.25 s, 0.5 s, 1 s, 2 s, or 3 s). Required on some fields; also useful for simulating 7.62 mm rifle recoil realistically.

Low Battery Alarm

For Li-Po/Li-Ion batteries. Audible alerts repeat every minute when voltage drops critically low. Can be toggled on/off.

DSG Mode

Optimized sector gear detection for dual sector gear setups.

Diagnostic System

Continuously monitors the replica and MOSFET, providing instant fault identification for easier troubleshooting.

Electronic Fuse

Automatically disconnects the battery on short circuit or motor blockage to protect the replica and battery.

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All settings are programmed via selector and trigger — no tools needed, changeable in seconds even in the field. Settings are independent per selector position, allowing full customization (e.g. semi on safe, binary on auto). Compatible with any battery from 7 V to 17 V, including extreme setups.