5KU Slide and Frame Kit LimCat for Hi-Capa 5.1 Tokyo Marui Silver / Grey

The 5KU Slide and Frame Kit LimCat for Hi-Capa 5.1 Tokyo Marui Silver / Grey is a comprehensive CNC-machined aluminium upgrade kit for the Tokyo Marui Hi-Capa 5.1 GBB platform. This version combines a 5-inch LimCat Custom-inspired slide and frame with a striking Silver / Grey two-tone finish.

In addition to the external CNC parts, the kit contains several key internal components, including a lightweight aluminium nozzle housing, recoil spring guide, CNC-machined hammer assembly and stainless steel sear. This makes the set a comprehensive foundation for a custom Hi-Capa designed to achieve a modern competition, speedsoft or race gun look.

CNC-aluminium met Silver / Grey two-tone afwerking

The slide and frame are made from CNC-machined aluminium. The machined contours and cut-outs create the distinctive LimCat Custom style and give the Hi-Capa a distinctly competition-inspired look.

This version stands out thanks to its silver/grey two-tone anodised finish. Instead of a single, uniform colour, shades of silver and grey are combined, making the various lines and CNC details stand out more clearly.

The neutral metallic colour scheme is easy to combine with black, silver, gold or other coloured aftermarket parts. Please bear in mind, however, that anodised shades may vary between manufacturers and production batches.

The included lightweight aluminium nozzle housing also helps to minimise the moving mass within the slide. In a well-tuned Hi-Capa, this can contribute to a fast and responsive cycle, although the final performance will depend on the overall internal configuration.

For the Tokyo Marui Hi-Capa 5.1 with extended parts kit

The LimCat Slide and Frame Kit for Hi-Capa 5.1 Tokyo Marui Silver / Grey has been developed for the Tokyo Marui Hi-Capa 5.1 GBB and uses a 5-inch configuration.

In addition to the slide and frame, several components are included for the further assembly of the replica. The set includes, amongst other things, a recoil spring guide, a CNC-machined hammer assembly, a stainless steel sear, a firing pin and various pins.

An outer barrel is not included. 5KU specifically states compatibility with its own 5-inch outer barrels, which means that a suitable separate outer barrel must be taken into account when assembling the complete build.

Although the kit has been developed around the TM Hi-Capa platform, this does not automatically mean that every aftermarket combination will function as a complete drop-in replacement. Tolerances between the slide, frame, outer barrel, nozzle assembly and hammer components may vary, particularly when parts from different manufacturers are combined.

Assembly, fitting and adjustment

5KU states that installation may require technical expertise. This is an important point when using a complete slide and frame kit, as several moving and functional parts need to be correctly aligned with one another.

During assembly, check that the slide moves smoothly along the frame, that the nozzle can return without excessive resistance, and that the outer barrel has sufficient room to move. The interaction between the hammer, sear, trigger and safeties must also be carefully checked.

Do not force CNC parts into place if they do not fit correctly. Even a slight deviation from the tolerance can affect cycling, trigger operation or reliability. Careful fitting is almost always better than trying to make parts work together by applying extra force.

Furthermore, a lightweight nozzle housing or aluminium slide is no automatic guarantee of better gas efficiency or a higher cyclic rate. The recoil spring, nozzle spring, blowback assembly, magazines, gas and temperature all play a part.

Practical insights

The Silver / Grey LimCat kit is particularly useful when building a Hi-Capa as a complete custom build. As several key external and internal components are supplied within the same kit, this provides a cohesive foundation for further tuning.

It is advisable to take particular care when choosing an outer barrel. 5KU specifically mentions its own 5-inch outer barrels as a compatible option. If using an outer barrel from another brand, the fit must be checked individually.

Once assembled, it is advisable to first check that all mechanical functions work correctly without BBs. Test whether the slide and nozzle move freely, whether the hammer resets correctly and whether all safety mechanisms are working properly before the replica is further adjusted and actually used.

Who is the 5KU LimCat Silver / Grey Kit suitable for?

The 5KU Slide and Frame Kit LimCat Silver / Grey is particularly suitable for experienced Hi-Capa users, airsoft technicians and players who wish to convert a Tokyo Marui Hi-Capa 5.1 into a high-quality custom replica.

The combination of CNC-machined aluminium, a lightweight nozzle housing and silver/grey two-tone styling fits perfectly into competition-, speedsoft- and racegun-inspired builds.

For users with no experience of completely dismantling, fitting and readjusting a Hi-Capa GBB, it is advisable to have it assembled by an experienced airsoft technician.

Specificaties

• Note: 5KU
• Model / stijl: LimCat Custom
• Producttype: Slide and Frame Kit
• Platform: Hi-Capa
• System: GBB
• Compatibiliteit: Tokyo Marui Hi-Capa 5.1
• Size: 5 inches
• Material: CNC-machined aluminium
• Colour: Silver / Grey
• Afwerking: Two-tone anodized finish
• Nozzle housing: Lightweight aluminium
• Nozzle housing included: Yes
• Recoil spring guide inbegrepen: Ja
• Hammer assembly included: Yes
• Hammer assembly: CNC-gefreesd
• Stainless steel sear inbegrepen: Ja
• 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- / 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 / mounting parts
• Outer barrel not included

Common mistakes

• Do not confuse this Silver with the standard Grey version, GB-601-GY.
• Do not regard the kit as a fully assembled Hi-Capa.
• Please note that the 5-inch outer barrel is not included.
• Do not automatically assume that installation will be entirely ‘drop-in’.
• Do not force the slide if it is noticeably jammed against the frame.
• Check that the outer barrel and nozzle assembly fit correctly before final assembly.
• After assembly, check that the slide and nozzle can move freely.
• Carefully test the hammer, trigger and all safety mechanisms.
• Do not expect a lightweight nozzle housing to automatically result in a higher cyclic rate or better gas efficiency.
• Please bear in mind the tolerances when combining parts from different aftermarket brands.
• 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 the Tokyo Marui Hi-Capa 5.1 GBB series.

What colour is this version exactly?
This kit combines Silver and Grey in a two-tone finish.

What material are the slide and frame made of?
The main structural components are made from CNC-machined aluminium.

What finish does this version have?
This version has a two-tone anodised finish.

How big is the slide?
It is a 5-inch configuration, developed for the Hi-Capa 5.1 platform.

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

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

Is a stainless steel sear included?
Yes. A stainless steel sear is included.

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

Which outer barrel can be used?
5KU specifically states compatibility with 5KU 5-inch outer barrels.

Is this a complete Hi-Capa?
No. It is a comprehensive upgrade and conversion kit. Additional parts are still required to create a fully functional replica.

Is the installation completely drop-in?
You shouldn’t assume that. Fitting and technical adjustment may be necessary.

Is professional assembly recommended?
If you have little experience of completely dismantling and reassembling Hi-Capa GBBs, it is advisable to have them assembled by an experienced airsoft technician.

The 5KU Slide and Frame Kit LimCat for Hi-Capa 5.1 Tokyo Marui Silver / Grey combines CNC-machined aluminium, a lightweight nozzle housing and a stylish two-tone finish to create a comprehensive foundation for a high-quality custom Hi-Capa 5.1.