Compact, capable and upgrade-ready: the Arcturus X C.A.T. AR-15 Legend 8.5" is a Feature Enhanced AEG combining steel, aluminum and polymer components with practical field solutions — split Centaur gearbox for quick spring swaps, precision rotary hop-up and a programmable FE optical ETU for fine-tuned trigger behaviour. Built as a durable base for sport and competition use.

Technical specifications

Model code: ACR-01-044938.

Type: AR-15 Legend 8.5" — AEG, FE series.

Construction materials: steel, CNC aluminum (handguard, body, barrel components) and reinforced polymer (, pistol grip, adjustable/folding stock, replaceable magwell).

Handguard: 8.3" aluminum, M-LOK and RIS compatible with additional dorsal rail.

Stock: folding (folds left), adjustable length; stock guide and hinge components in steel.

Internals:

Split gearbox ARC V2 Centaur with quick-change spring system.

23T ferrite motor.

18:1 gear set including pre-cocking gear.

CNC stainless steel cylinder.

CNC POM nozzle with O-ring.

Rotary hop-up chamber.

FE Optical ETU (programmable optical Mosfet).

FE ETU features:

Adjustable Pre-Cocking (7 steps).

Active Break (8 stages).

Adjustable trigger hardness and reset (5 steps each).

Progressive algorithmic trigger, adaptive hair-trigger.

Programmable fire modes; binary trigger with ramping.

Low battery protection and electronic fuse.

Controls and externals: ambidextrous aluminum controls, dummy gas block, exhaust device and outer barrel in aluminum; ergonomic polymer grip and body panels.

Package contents

1 × Arcturus X C.A.T. AR-15 Legend 8.5" AEG FE™ Carbine (ACR-01-044938).

1 × mid-cap magazine supplied.

1 × cleaning rod.

1 × patch/cloth.

1 × Allen key.

1 × iron sight set.

1 × small Tamiya → Deans adapter.

1 × dummy cartridge for mechanical pre-cocking; interchangeable stock/magwell parts included.

Note: battery and charger NOT included.

Why buy it
A ready-to-use AR platform that balances out-of-the-box electronic control with straightforward serviceability — perfect as a primary AEG for competitive players or as a robust base for progressive customisation.

Warnings & important information (GPSR & Italian compliance)

Minimum purchase age in Italy: 16 years.

Keep out of reach of children.

Battery and charger NOT included: use only compatible, high-quality accumulators and follow the manufacturer’s charging and storage instructions.

Inspect fastenings and function before use; perform initial tests in a safe environment with eye protection.

Split gearbox and pre-cocking systems contain springs under tension — handle with care; if unsure, seek experienced technical support for maintenance or internal work.

Do not tamper with or modify electronics or mechanics; unauthorized alterations may cause malfunction and void warranty.

Respect local laws regarding transport, display and use of airsoft replicas; use suitable cases when transporting in public.

Store in a dry, ventilated place; avoid prolonged exposure to heat or humidity.

Do not disassemble, alter or otherwise tamper with the product in any way.

Warnings provided in accordance with the General Product Safety Regulation (GPSR) and applicable Italian safety laws.