Army Armament R604 4.3 Hi-Capa Gas Blowback Airsoft Pistol, Black

The black Army Armament R604 4.3 Hi-Capa matches a CNC-machined metal slide and outer barrel with a textured polymer frame, creating a tough, compact airsoft pistol built for fast-paced games. Running on standard green gas, this semi-automatic replica shoots 0.20g BBs between 300 and 320 FPS. An adjustable hop-up lets you fine-tune backspin on 6mm BBs for steady trajectories in tight indoor quarters. Ammo feeds from a double-stack 28-round green gas magazine compatible with TM-spec Hi-Capa mags. The box includes the R604 airsoft pistol, a 28-round magazine, and a dedicated scope mount plate for micro red dot optics.

Built around Tokyo Marui-style Hi-Capa internals, this platform makes maintenance simple and offers broad aftermarket part access. You can easily swap out components like blowback nozzles, recoil spring guides, inner barrels, and hop-up buckings. Common performance upgrades include fitting a 6.01mm tightbore inner barrel, an upgraded 60-degree GBB bucking for tighter shot groupings, and a lightweight recoil spring guide to speed up slide cycling for faster follow-up shots.

Features:

• Realistic gas blowback slide cycling
• Full metal slide with polymer scale grip
• Front and rear slide serrations
• Under-barrel Picatinny accessory rail
• Lightweight skeletonized competition trigger
• Ambidextrous safety and functional beavertail safety
• Enlarged flared magwell for fast reloads
• High-profile fiber optic suppressor-height sights