The Custom Niji 5.1 Hi-Capa Gas Blowback Airsoft Pistol in gray and black is a fully built premium sidearm designed for players who demand top-tier performance and unmatched style. Built from a combination of CNC aluminum and stainless steel components, this pistol delivers strength, durability, and precision with every shot. At its core is the Atlas Custom Works EX01 slide and frame kit, complete with lightweight cutouts, paired with a stainless steel fluted threaded outer barrel for tracer or suppressor compatibility. Internally, the pistol is reinforced with a CNC blowback housing, steel disconnector, and valve knocker for reliability under heavy use, while the Unicorn 6.03mm tightbore inner barrel and CNC hop-up chamber maximize accuracy and consistency. With a shooting velocity of 310-320 FPS and a 31-round magazine, this Hi-Capa is ready for both competitive and casual play. On the exterior, this build combines style with function. A slim ergonomic grip in wolf gray ensures superior control, while rainbow-accented CowCow upgrades, including the hammer, guide rod, trigger, silencer adapter, and grip screws, add eye-catching detail. The pistol also comes equipped with a Lancer Tactical x Acetech Bifrost tracer unit that offers multi-color RGB flame effects, as well as an Atlas Custom Works M1 Micro Red Dot sight for rapid target acquisition. Every component has been carefully chosen to deliver an edge on the field, from the Dr. Black recoil spring for faster cycling to the TTI Infinity hop-up chamber for precision tuning. Packaged with a padded 13 inch Code 11 pistol bag for safe transport, the Custom Niji 5.1 is more than just an airsoft gun-it's a statement piece built for players who want performance, customization, and premium quality in one complete package.
Specifications
- Brand: Custom build with Atlas Custom Works, Laylax, CowCow, Airsoft Masterpiece, TTI, Unicorn Airsoft, Lancer Tactical, Tokyo Marui, Dr. Black, Golden Eagle, Code 11
- Type: Gas Blowback Hi-Capa Pistol (custom)
- Material: CNC aluminum and stainless steel components
- Magazine Capacity: 31 rounds
- FPS: 310-320
- Rail/Attachment Options: Threaded outer barrel, tracer/suppressor compatibility, optic mount base
- Color: Gray/Black with rainbow-accented components
Features
- Fully custom-built premium Hi-Capa airsoft pistol
- CNC aluminum EX01 slide and frame kit with lightweight cutouts
- Stainless steel fluted threaded outer barrel for tracer or suppressor compatibility
- Precision CNC blowback housing for smooth and reliable cycling
- Match grade stainless steel hammer and guide rod with adjustable recoil spring system
- Upgraded steel disconnector and valve knocker for durability
- Unicorn 6.03mm precision inner barrel with hop-up bucking for improved accuracy
- One-piece CNC hop-up chamber for stable performance
- Slim ergonomic grip in wolf gray with aggressive texture for secure handling
- Ambidextrous aluminum thumb safety for enhanced control
- Equipped with Bifrost RGB tracer unit with multi-color flame effects
- Includes compact M1 Micro Red Dot sight for rapid target acquisition
- 31-round Hi-Capa magazine with extended baseplate
- Comes with a padded 13 inch Code 11 pistol bag for safe transport
Upgraded Parts
- CNC Aluminum Construction
- CNC Cutout Lightweight Design
- Recoil Spring Guide, Hammer Housing Included
- Compatible With Tokyo Marui TM Hi-Capa GBBP Series
- Precision, lightweight aluminum design secures your magazine and ensures fast release
- Stylish and eye catching heat gradation finish
- Direct replacement or upgrade component that is easy to install
- Adjustable lever angle
- The new Lancer Tactical Acetech crossover offers a Special Edition of the Bifrost which has a new unique rainbow heat gradation color scheme
- The Acetech Bifrost simulates muzzle flash, and the effect of the flame depends on the volume of gas or water fog around the muzzle, with more volume the effect will be better looking
- Bifrost provides two different tracer modes (normal tracer and sniper)
- Acetech's newest innovation is the 11 different multi-color flame function that looks incredible when firing a barrage of BBs down range
- Emblaze the BBs track into a rainbow colored beam when firing
- Intelligent power on and off controls (The tracer will power on by a simple shake and enter sleep mode while idle for more than 5 minutes)
- Made to support rifles that can shoot up to 35 RPS burst speeds all while still being brighter than ordinary illuminators
- Battery can supply up to 20,000 rounds with one charge
- Stainless steel construction with a polished silver finish that looks and feels high quality
- 11mm clockwise internal threading that makes mounting mock suppressors and tracer units quick and easy
- Lightening cuts in barrel makes for faster cycling
- Heavy duty CNC steel construction
- Drop-in part improves pistol reliability and reduces wear
- Stiffer spring design than stock ones
- Comes with disconnector and spring
- Compatible with Tokyo Marui Hi-Capa pistols
- Precision CNC machined 7075 aluminum construction
- Ultra lightweight design
- Durable construction prevents flexing and warping under hard use
- Provide stable and smooth blowback cycling
- Compatible with stock TM piston head and CowCow piston head
- Precision CNC machined stainless steel construction
- Drop in upgrade or replacement component
- Titanium nitride treated finish for greatly improved durability and smoother operation
- Durable construction for IPSC shooter use
- Precision CNC machined stainless steel construction
- Direct drop in 2nd spring and additional spring housing design
- 3 different weight of recoil springs for precise calibration
- Combine with primary spring to soften recoil
- Enhance the reaction force to speed up the blowback cycle
- CNC machined stainless steel construction
- 11mm positive to 14mm negative that allows for the mounting of most popular mock suppressors
- Designed for Tokyo Marui Hi-Capa/1911
- Durable and lightweight aluminum alloy construction
- Precision CNC machined aluminum construction
- 10 x 14 dots for labeling (Use ink or paint pen to customize
- Shifting pin holding system can latch the magazine tightly
- Weather resistant anodized finish
- Precision CNC machined aluminum construction
- Adjustable pre-travel system
- Direct drop in upgrade or replacement part
- Durable stainless steel construction enhances the overall look and strength
- Compatible with Tokyo Marui Hi-Capa spec gas blowback airsoft pistols
- Excellent as a replacement or upgrade part for your Hi-Capa pistol
- Scratch and corrosion resistant coating
- Attaches the pistol grip onto the airsoft pistol frame
- CNC Aluminum Construction
- TDC Style Hop-Up Chamber
- One-Piece Hop-Up Chamber
- Designed for the Tokyo Marui Hi-Capa Series Gas Airsoft Pistols
- Injection molded polymer construction that is very lightweight and durable
- Simplistic textured and slim grip gives players the option for a superior hold on the handgun
- Side panels are aggressively texture to prevent slippage even while wearing gloves
- The grip features a competition undercut on the grip
- Ergonomically designed for superior grip
- CNC Aluminum Construction
- Anodized Finish
- Type-1 design
- Ambidextrous Control
- Drop-in Installation
- Compatible with Marui / WE Hi-capa series and similar GBB
- 6.03mm tightbore diameter for improved accuracy and consistency
- Nitroflon coating for reduced friction and enhanced performance
- Smooth bore and precision honing for optimal BB trajectory
- Compatible with most GBB airsoft pistols
- Includes upgraded hop-up bucking
- Easy installation
- Aluminum alloy construction
- CNC machined for a precise fit
- Designed for use with Tokyo Marui and other compatible gas blowback Hi-Capa pistols
- Adjustable rail piece can be brought forward or backwards, right and left, for maximum tuning capability
- Included extended slide stop helps with smoother reloads
- Durable, long-lasting steel construction
- 100% spring helps increase cycling speed
- Enhanced durability
- Drop-in component
- DURABLE ALUMINUM ALLOY
- DESIGNED ONLY FOR TOKYO MARUI AND MOST HI CAPA GBB PISTOLS
- HOLDS UP TO 31 ROUNDS
- FEATURES AN EXTENDED BASE PLATE FOR PROTECTION AND GRABBING
- GAS EFFICIENT CONSTRUCTION CONSISTENTLY FIRES BBS AT THE SAME OUTPUT
- Compact Red dot sight for rapid target acquisition
- Durable construction designed for tactical use
- Easy windage and elevation adjustment knobs
- Clear protective lens for optimal visibility
- Quick detach mount for easy installation and removal
- Lightweight design suitable for various firearms
- Battery-powered with easy-access compartment
- Ideal for close to mid-range shooting applications
- High tension plunger spring
- Direct replacement component Tokyo Marui Spec Hi Capas
- The pistol case is built from rugged all-weather nylon fabric and features a padded interior zipper compartment for your sidearms
- Inside the case there is a series of heavy duty elastic straps that holds magazines and accessories in place
- Durable zippers that don't snag
- Laser cut Molle panel on the face allows for the attachment of additional pouches
Package Includes: 1x Gun, 1x Magazine, 1x Manual
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