Hi-Capa 5.1 Vanguard Gas Replica with ARS-1 Red Dot ARCTURUS

The Hi-Capa 5.1 Vanguard Gas Replica with ARS-1 Red Dot by ARCTURUS, a Ready-to-Use GBB Handgun

The Hi-Capa 5.1 Vanguard with ARS-1 red dot by Arcturus is a gas blowback airsoft handgun delivered with its RMR optic ready to mount, designed for players who want a complete setup without compromising on material quality or precision. It targets both regular and experienced players looking for a directly operational platform, equally at home in CQB and outdoor environments.

Construction and Materials: a Superior Level of Finish

The slide is CNC-machined from aluminum, a manufacturing process that ensures lasting durability over time. Internal parts are made from MIM steel (Metal Injection Moulding) with QPQ treatment, a combination that balances wear resistance and surface consistency under contact, including during intensive firing cycles.

The 113 mm carbon steel precision barrel features a 6.03 mm inner diameter and benefits from ENT treatment (Enduraheat Nitride Treatment), which reinforces the inner surface against corrosion and wear. The nylon fiber-reinforced polymer grip provides a firm hold and adequate absorption of blowback vibrations. The magazine is manufactured from SEFP (Super Enhanced Formulated Polymer), a material formulated for impact and deformation resistance.

Ergonomics and Versatility: Designed for All Shooters

The Vanguard's controls are fully ambidextrous: safety lever, slide catch, and mag release operate on both sides, making this replica usable without adaptation for both left- and right-handed players. The 5-slot Picatinny rail under the barrel allows the addition of a tactical flashlight or laser without modification.

The hop-up is adjustable, with a hop-up tensioner included in the box to fine-tune the setting according to the BB weight used. The gas system is designed to remain operational below 10°C, a practical advantage during autumn sessions or in air-conditioned indoor environments. The 11 mm clockwise (CW) barrel thread allows the fitting of a compatible suppressor.

The ARS-1 RMR: an Integrated Optic Ready to Mount

The Optics Ready slide integrates a dedicated plate with a 19 mm mounting pattern, on which the Arcturus ARS-1 RMR is ready to mount. This 3.5 MOA red dot with ?-1 magnification features infinite eye relief, enabling fast target acquisition regardless of shooting position. Parallax is maintained at less than 2 MOA at 30 yards.

The ARS-1 offers 10 brightness levels, elevation and windage adjustments of ±50 MOA, IPX6 waterproofing, and shock resistance certified at 800 G. Its lenses benefit from anti-reflection, anti-fog, and anti-scratch coatings. The housing is made from anodized aluminum. Auto-sleep and auto-wake modes extend the CR2032 battery life between sessions.

Hi-Capa TM Compatibility and Upgrade Potential

The Hi-Capa 5.1 Vanguard is compatible with Tokyo Marui Hi-Capa parts, the reference ecosystem for this format. This compatibility means that all upgrades available on the market (barrels, pistons, nozzles, valves, springs) can be installed without adaptation, making this replica a serious upgrade base for players who wish to customize their internal performance over time.

• What internal parts are used in the Hi-Capa 5.1 Vanguard ARCTURUS?

  This replica features internal components made from MIM (Metal Injection Moulding) steel with a QPQ surface treatment, ensuring enhanced durability. It is also equipped with a 6.03 mm inner diameter carbon steel precision barrel, benefiting from an ENT treatment for improved resistance.

• Is the replica compatible with aftermarket accessories and spare parts?

  Yes, the design of the Hi-Capa 5.1 Vanguard ARCTURUS ensures compatibility with standard Tokyo Marui parts. This greatly simplifies maintenance and future upgrades of your replica.

• Is the ARS-1 red dot sight included and easy to use?

  The ARS-1 red dot sight is included to be mounted on the 19 mm RMR plate, which is directly integrated into the replica's Optics Ready slide. It offers 10 brightness levels, an automatic standby mode, and a robust anodised aluminium construction that is shock-resistant.

• What are the benefits of the ambidextrous controls on this model?

  The ambidextrous safety lever, slide catch, and magazine release button allow for ergonomic and intuitive handling, regardless of shooting side. These features are ideal for dynamic gameplay phases in both CQB and outdoor environments.

• Does the replica perform reliably in cold weather?

  The gas system of the Hi-Capa 5.1 Vanguard ARCTURUS is specifically optimised to remain operational in temperatures below 10 °C.

• What is included in the box at purchase?

  The product includes the replica, the ARS-1 red dot sight, a 19 mm RMR plate, a 31-round magazine, a cleaning rod, a seal set, mounting keys, a rubber protection for the optic, and the user manual. The CR2032 battery required for the optic is not included.

• What accessory mounting options are available on the replica's body?

  The Vanguard is equipped with a 5-slot Picatinny rail located under the barrel, allowing quick installation of a tactical flashlight or laser. In addition, its 11 mm CW thread offers customisation options at the muzzle end.

1 x Hi-Capa 5.1 Vanguard ARCTURUS Gas Replica
1 x ARS-1 Red Dot Sight
1 x RMR Mount with 19 mm rail pitch
1 x 31 BBs Gas Magazine
1 x Cleaning Rod
1 x O-ring Set
1 x Recoil Spring
1 x Hop-Up Tensioner
2 x Allen Keys
1 x User Manual
1 x Cleaning Cloth
1 x Optic Adjustment Key
1 x Rubber Lens Cover

• Pistol replicas
• Caliber 6 mm
• Propulsion Gas
• Shooting mode Semi-automatic
• Energy 0.9 Joules
• Speed 311 FPS
• Model Hi-Capa 5.1 Vanguard with red dot ARS-1
• Length 220 mm
• Internal barrel length 113 mm
• Internal barrel diameter 6,03 mm
• No screws 11 mm CW
• Weight 990 g
• How it works Adjustable Hop-Up
• Design Reinforced polymer / CNC aluminum / MIM steel
• Blowback system Yes
• Integrated tactical rail Picatinny
• Charger 31 BBs
• Brand Arcturus