Custom Niji 5.1 Hi-Capa Gas Blowback Airsoft Pistol, Gray/Black

Built for fast-paced speedsoft competition, the gray and black Custom Niji 5.1 Hi-Capa pairs a CNC aluminum slide, frame, outer barrel, and trigger with stainless steel hammer internals and a polymer grip. The build brings together components from Airsoft Masterpiece, CowCow, Laylax, Atlas Custom Works, TTI, Unicorn Airsoft, Dr. Black, Golden Eagle, Code 11, Lancer Tactical, and Tokyo Marui. Powered by green gas, this semi-automatic airsoft pistol shoots 310 to 320 FPS. Key features include an optic mounting plate, a threaded outer barrel for tracer units or suppressors, and an included 31-round gas magazine. The box contains the airsoft gun, magazine, and user manual.

Built around standard Tokyo Marui 5.1 Hi-Capa geometry, the airsoft sidearm offers total cross-compatibility with aftermarket upgrade components. Internal tuning remains straightforward across recoil springs, blowback housings, inner barrels, and hop-up buckings. The recommended upgrade path includes installing a high-flow recoil spring to accelerate slide cycling, dropping in a 6.01mm tightbore inner barrel with a high-degree bucking for maximum accuracy, and acquiring extra 31-round magazines for swift reload execution.

This comes with a federally mandated blaze orange tip.

Features:

• Fully custom-built CNC aluminum EX01 slide and frame
• Stainless steel fluted threaded outer barrel
• CNC ultra-lightweight blowback housing
• Stainless steel hammer, guide rod, and spring set
• Upgraded CNC steel disconnector and valve knocker
• Unicorn 6.03mm tightbore inner barrel with custom hop-up bucking
• TTI one-piece CNC aluminum TDC hop-up chamber
• Laylax Slim R ergonomic grip in Wolf Gray
• Ambidextrous aluminum thumb safety controls
• Includes Acetech Bifrost RGB rainbow flame effect tracer unit
• Includes Atlas Custom Works M1 Micro Red Dot sight
• Includes Laylax adjustable optic mount in heat gradation finish
• Tokio Marui 31-round magazine with CowCow rainbow baseplate
• Includes padded 13-inch Code 11 tactical pistol bag