Army Custom 5.1 Hi-Capa Gas Blowback Pistol (R604 – Blue)

Description

Army Custom 5.1 Hi-Capa Gas Blowback Pistol (R604 – Blue)

The Army Armament Custom 5.1 (R604) is a gas blowback Hi-Capa pistol with a race-inspired look, finished here in blue. With a compensator, shortened and lightened slide, fibre optic sights and a tactical magwell, it brings the style of a competition pistol to a practical, affordable sidearm.

Army Armament is known for well-priced Hi-Capa replicas, and the Hi-Capa platform itself is one of the most popular in airsoft, thanks to its huge range of upgrade parts and accessories. The R604 suits players who want a lively, eye-catching sidearm or a starting point for a speed-shooting build.

Build and materials

The pistol is listed as full metal, with a polymer grip that has stippled texturing for a secure hold. The slide is shortened, with weight-reduction cuts that help it cycle quickly, and the frame is reinforced. A compensator sits at the front over a 4-inch island-type barrel, and a frame rail is provided for mounting a torch.

The tactical magwell helps guide the magazine in during fast reloads, and the laser-engraved markings add a finishing detail. The blue finish gives the pistol a bright, distinctive look.

Performance

The R604 is a gas blowback pistol, so the slide cycles with every shot for a lively recoil. The 28-round double-stack extended magazine has sealed valves and a base pad, and the polymer nozzle is reinforced and designed to cope better with low temperatures.

The hop-up is adjustable and uses a sealed hop-up rubber made from a silicone compound that is designed to stay tight in cold weather, helping keep shots consistent. Fibre optic sights make it quick to pick up the front sight, and a pistol red dot mounting plate is included if you want to add an optic.

Controls

An ambidextrous thumb safety, which can also lock the slide, makes the pistol suitable for left and right-handed shooters. The Hi-Capa’s single-action trigger is known for being light and crisp, which suits fast, accurate shooting.

Getting started

Charge the magazine with gas in short, steady bursts and let it rest briefly before shooting. Test-fire at a safe target and set the hop-up from zero, adding a little at a time until the BB’s flight is straight and level.

Practise reloads at home so they feel natural, and have the replica chronographed at the site before your first game.

Key features

• Hi-Capa 5.1 gas blowback pistol
• Listed as full metal, with stippled polymer grip
• Compensator on a 4-inch island barrel
• Shortened, lightened slide
• Fibre optic sights
• Red dot mounting plate included
• 28-round extended double-stack magazine
• Sealed silicone-compound hop-up rubber
• Ambidextrous thumb safety
• Tactical magwell and frame rail
• Blue finish

What’s in the box

• Army Custom 5.1 Hi-Capa pistol (R604)
• 28-round green gas extended magazine
• Red dot mount

Compatibility

The R604 uses Hi-Capa pattern gas magazines; Army Armament magazines are the safest choice, and other brands’ Hi-Capa magazines are often compatible, but check before you buy. The Hi-Capa platform has a wide range of compatible upgrade parts, though fit can vary between brands. Holsters need to suit the compensator and any optic you fit.

Care and maintenance

Keep a little gas in the magazines when you store them and lubricate the seals with silicone oil from time to time. Fill in short bursts until gas just starts to spit back, and keep magazines at room temperature for the best performance.

After use, check the moving parts for dirt and wipe them with a light coat of silicone oil. Clean the inner barrel occasionally, use clean seamless BBs, and keep the replica dry.

Who is it for?

Players who want an eye-catching, race-style Hi-Capa with useful extras like fibre optic sights and a red dot mount, and anyone starting a Hi-Capa speed-shooting build.

Please note: Gas and BBs are not included. Gas pistols lose some performance in cold weather. Always wear suitable eye protection.