5KU Slide and Frame Kit LimCat for Hi-Capa 5.1 Tokyo Marui Black

The 5KU Slide and Frame Kit LimCat for Hi-Capa 5.1 Tokyo Marui Black is a comprehensive CNC-machined aluminium upgrade kit for the Tokyo Marui Hi-Capa 5.1 GBB platform. The set combines a 5-inch slide and frame in LimCat Custom style with various internal components, including a lightweight aluminium nozzle housing, recoil spring guide and CNC-machined hammer assembly.

This black version is particularly interesting as a basis for a high-quality custom Hi-Capa, combining a modern competition and racing gun look with an extensive metal construction. It is explicitly a technical upgrade kit and not a fully assembled pistol: various parts must be transferred or added separately.

CNC-aluminium 5-inch slide en frame

The kit is based on a CNC-machined aluminium slide and frame in 5-inch format. The set has therefore been designed to match the dimensions of the Tokyo Marui Hi-Capa 5.1.

The LimCat Custom-inspired design gives the Hi-Capa a distinct competition/race gun look. The CNC machining allows for complex contours and cut-outs and provides a solid foundation for a custom build.

In a GBB pistol, the weight of the moving slide is a key factor in the cycling action. Depending on its design and weight, an aluminium slide may provide a different response to the original Tokyo Marui plastic slide. However, the final performance is determined by the complete combination of the slide, blowback unit, nozzle, recoil spring, outer barrel, gas system and other internal components.

Lightweight nozzle housing and a wide range of internal components

5KU supplies a lightweight aluminium nozzle housing with this kit. This component, often referred to as the blowback unit housing, is located within the slide and forms the housing around key parts of the blowback and nozzle mechanism.

A lower moving mass in the slide can contribute to a responsive cycle, but the result always depends on the overall configuration. Simply fitting a lightweight nozzle housing is therefore no guarantee of a higher cyclic rate or better gas efficiency.

What’s more, the kit includes more than just a slide and frame. A recoil spring guide, CNC-machined hammer assembly, stainless steel sear, firing pin and various pins are also included. This makes the set a comprehensive basis for building a custom Hi-Capa.

Compatibel met TM Hi-Capa 5.1 en 5KU 5-inch outer barrels

The kit has been developed for Tokyo Marui Hi-Capa 5.1 GBB pistols and utilises the popular TM-spec Hi-Capa platform.

With regard to the outer barrel, 5KU specifically states compatibility with 5KU 5-inch outer barrels. Such an outer barrel is not included and must therefore be purchased separately or taken from a suitable existing configuration.

With custom Hi-Capas, compatibility remains a matter of how different parts work together. Even when components are all marketed as TM-spec, tolerances may vary between manufacturers. In particular, the fit between the slide, frame, outer barrel, blowback unit and hammer assembly deserves extra attention during assembly.

Practical insights

This LimCat kit is clearly aimed at users who want to go beyond a simple external upgrade. The manufacturer states that installation may require technical expertise, and given the number of components in this kit, this is an important point to bear in mind.

During assembly, check, amongst other things, that the slide moves smoothly and without excessive play along the frame, that the outer barrel moves correctly, that the nozzle returns freely, and that the hammer and sear components work together correctly. Once assembly is complete, the trigger and safeties must also be thoroughly checked before the replica is actually used.

Do not use screws or other parts to force poorly fitting CNC components together. With a high-quality custom Hi-Capa, careful fitting is almost always a better option than the traditional technical approach of ‘pushing a little harder’.

Who is the 5KU LimCat Slide and Frame Kit suitable for?

The 5KU Slide and Frame Kit LimCat Black is particularly suitable for experienced Hi-Capa builders, airsoft technicians and players who wish to use a Tokyo Marui Hi-Capa 5.1 as the basis for an extensive custom build.

The 5-inch LimCat Custom-style fits well with competition, speedsoft and race gun-inspired set-ups. Thanks to its black finish, the kit can be assembled entirely in black or combined with coloured CNC components to create a contrasting custom look.

For beginners with no experience of the internal workings and adjustment of a Hi-Capa GBB, professional assembly is recommended.

Specificaties

• Note: 5KU
• Model / stijl: LimCat Custom
• Producttype: Slide and Frame Kit
• Platform: Hi-Capa
• System: GBB
• Compatibiliteit: Tokyo Marui Hi-Capa 5.1
• Slide size: 5 inches
• Slide material: CNC-machined aluminium
• Frame material: CNC-machined aluminium
• Nozzle housing material: Lightweight aluminium
• Colour: Black
• Nozzle housing included: Yes
• Recoil spring guide inbegrepen: Ja
• Hammer assembly included: Yes
• Hammer assembly: CNC-gefreesd
• Sear included: Yes
• Material: Stainless steel
• Firing pin included: Yes
• Pins included: Yes
• Compatibele outer barrel: 5KU 5-inch outer barrel
• Outer barrel included: No
• Technical installation knowledge recommended: Yes
• Toepassing: Custom Hi-Capa / competition- en racegun-build

Contents of the pack

• 1x 5KU LimCat Style 5-inch CNC Aluminium Slide
• 1x 5KU LimCat Style CNC Aluminium Frame
• 1x Lightweight aluminium nozzle housing
• 1x Recoil Spring Guide
• 1x CNC-machined Hammer Assembly
• 1x Stainless Steel Sear
• 1x Firing Pin
• Pins / fasteners depending on the model
• Outer barrel not included

Common mistakes

• Please do not regard this set as a complete, ready-to-use Hi-Capa.
• Please note that the 5-inch outer barrel is not included.
• Do not automatically assume that installation will be a straightforward ‘drop-in’ process requiring no fitting or adjustment.
• Do not force the slide over the frame if it is noticeably stuck.
• Check that the outer barrel fits correctly before the replica is fully assembled.
• After assembly, check that the nozzle and slide can move freely.
• Carefully check the interaction between the hammer, sear and trigger mechanism.
• Test all safety mechanisms after assembly, before the replica is used.
• Do not expect a lightweight nozzle housing to automatically result in a higher cyclic rate or better gas efficiency on its own.
• Do not mix aftermarket parts from different brands without taking tolerances into account.
• If you do not have sufficient experience with Hi-Capa GBB technology, have the assembly carried out by an experienced airsoft technician.

Frequently Asked Questions

Which Hi-Capa model is this 5KU LimCat Kit designed for?
The kit has been developed for Tokyo Marui Hi-Capa 5.1 GBB pistols.

How long is the slide?
It is a 5-inch slide, compatible with the Hi-Capa 5.1 calibre.

What material are the slide and the frame made of?
Both are made from CNC-machined aluminium.

What does ‘LimCat Custom-style’ mean?
It refers to the competition/racegun-inspired design of the slide and frame kit. This is a 5KU aftermarket product in this style.

Is a nozzle housing included?
Yes. The kit includes a lightweight aluminium nozzle housing.

Is the hammer assembly included?
Yes. A CNC-milled hammer assembly is included in the set.

What other parts of the hammer mechanism are included?
According to the product information, the set includes, amongst other things, a stainless steel sear, firing pin and pins.

Is an outer barrel included?
No. The outer barrel is not included.

Which outer barrel can I use?
5KU specifically states that the kit is compatible with 5KU 5-inch outer barrels.

Is this a complete Hi-Capa that I can use straight away?
No. It is a comprehensive upgrade and build kit. Additional parts are required to create a fully functional Hi-Capa.

Is the installation completely drop-in?
You shouldn’t assume that. With a comprehensive CNC slide and frame kit, fitting and technical adjustment may be necessary.

Is professional installation recommended?
If you have no experience of fully assembling and adjusting a Hi-Capa GBB, we strongly recommend having it fitted by an experienced airsoft technician.

The 5KU Slide and Frame Kit LimCat for Hi-Capa 5.1 Tokyo Marui Black features a comprehensive CNC-machined aluminium base with a lightweight nozzle housing and various internal components for building a high-quality custom Hi-Capa 5.1.