Hi-Capa 5.1 Vanguard Gas Replica ARCTURUS

The ARCTURUS Hi-Capa 5.1 Vanguard gas replica, a GBB airsoft pistol designed for performance and durability

The ARCTURUS Hi-Capa 5.1 Vanguard gas replica is a semi-automatic Gas Blowback airsoft pistol designed for players looking for a reliable, accurate and immediately field-ready Hi-Capa platform. It suits CQB players as well as outdoor players, speedsofters, or those seeking a quality backup handgun. Its positioning is built on a rigorous construction combining aluminium, steel and high-performance polymer, with technical choices that clearly set it apart from entry-level pistols.

Metal construction and refined internal parts

The slide is CNC-machined in metal, ensuring lasting durability through firing cycles. The internal components, including the trigger, cut-off lever, valve knocker and firing pin lock, are all manufactured in MIM steel with a QPQ finish. The MIM (Metal Injection Molding) process allows complex-shaped parts to be produced, while the QPQ surface treatment enhances their resistance to wear and corrosion. Sensitive external parts, such as the slide catch, hammer, chien and mag release, are also made of steel.
The magazine integrates SEFP (Super Enhanced Formulated Polymer) components, a polymer specifically formulated to withstand the thermal and mechanical stresses associated with gas use. Its capacity is 31 BBs.

A precision barrel and adjustable sights

The inner barrel measures 113 mm and is manufactured from carbon steel with a 6.03 mm bore. It receives an ENT (Enduraheat Nitride Treatment) that hardens its inner surface and improves its long-term abrasion resistance. This inner diameter, combined with the quality of the treated metal, contributes to greater BB trajectory consistency shot after shot.
The sights are fiber optic, enabling accurate aiming even in low-light conditions. A 5-slot Picatinny rail is integrated under the barrel to mount a tactical flashlight or laser without an additional adapter.

Ergonomics, ambidexterity and Tokyo Marui Hi-Capa compatibility

The grip is textured to ensure a firm hold in all conditions. The safety is ambidextrous, making the replica accessible to both right- and left-handed players without modification. The blowback is described as powerful, with a pronounced recoil that enhances the realism of the handling and firing cycle.
The Hi-Capa 5.1 Vanguard ARCTURUS is fully compatible with Tokyo Marui Hi-Capa parts, which represents a concrete advantage for customisation or upgrading. The magazine is also compatible with Marui Hi-Capa magazines. Finally, the gas system is designed to operate at low temperatures, below 10 °C, which extends field usage conditions compared to many standard GBB replicas.

• What is the compatibility of the Hi-Capa 5.1 Vanguard ARCTURUS gas replica with other parts?

  The replica is compatible with the Tokyo Marui Hi-Capa parts standard, which greatly facilitates customization. This design allows the use of third-party magazines and accessories made for this standard on the market.

• What materials make up this replica and what is their purpose?

  It features a robust construction combining aluminum, steel and polymer, with a CNC-machined metal slide. Internal parts are made of MIM steel with QPQ finishing for enhanced durability, while the carbon steel precision barrel receives an ENT treatment to optimize longevity.

• Is the Hi-Capa 5.1 Vanguard ARCTURUS gas replica suited for intensive use?

  Yes, its technical design, particularly its SEFP (Super Enhanced Formulated Polymer) magazine components and reinforced internal parts, makes it suited for demanding uses such as CQB or competition. It is also designed to operate with a high-performance gas system, even in low temperatures below 10°C.

• What adjustments are available on this model?

  The replica features fiber optic sights to improve target acquisition. It is also equipped with a 5-slot Picatinny rail under the barrel, allowing the installation of tactical accessories such as a flashlight or a laser.

• What is included in the box of the Hi-Capa 5.1 Vanguard ARCTURUS gas replica?

  The box includes the replica, a 31-BB gas magazine, a cleaning rod and two Allen keys. Maintenance parts are also provided, including an O-ring set, an extra recoil spring and a hop-up tensioner.

1 x Hi-Capa 5.1 Vanguard ARCTURUS gas replica
1 x 31 BBs gas magazine
1 x Cleaning rod
2 x Allen keys
1 x O-ring set
1 x Recoil spring
1 x Hop-up tensioner
1 x User manual

• Pistol replicas
• Caliber 6 mm
• Propulsion Gas
• Shooting mode Semi-automatic
• Energy 0.95 Joules
• Speed 320 FPS
• Model Hi-Capa 5.1 Vanguard
• Length 220 mm
• Internal barrel length 113 mm
• Weight 960 g
• How it works Adjustable Hop-Up
• Design Aluminum / Steel / Polymer
• Blowback system Yes
• Integrated tactical rail 5-slot Picatinny
• Charger 31 BBs
• Brand Arcturus