Custom Parts (2871)

You can expect smooth cocking with little resistance. Internal parts such as pistons, springs, and spring guides are not included.

For the company's ATHENA air/gas cocking rifles This is a receiver cover required when changing from a gas bolt to an air bolt. CNC aluminum Use the original screws to...

The ultimate inner barrel that delivers performance that satisfies SPARK custom engineers. "Hirei®" is a high-quality, ultra-precise inner barrel made entirely in Japan, developed with the cutting-edge metalworking techniques of...

The ultimate inner barrel that delivers performance that satisfies SPARK custom engineers. The bore has been widened from the previous 6.05mm bore diameter to 6.15mm, resulting in the Hirei® Kai....

This product is for you if you want another Versatile but don't want to buy another one! It comes with an inner barrel, chamber, and upper gearbox, so you can...

This product is for you if you want another Versatile but don't want to buy another one! It comes with an inner barrel, chamber, and upper gearbox, so you can...

This product is for you if you want another Versatile but don't want to buy another one! It comes with an inner barrel, chamber, and upper gearbox, so you can...

The three films starring Clint Eastwood, "A Fistful of Dollars," "For a Few Dollars More," and "The Good, the Bad and the Ugly," sparked a huge boom in spaghetti westerns...

In the real gun world, companies are working hard to make guns lighter, but ironically, the opposite phenomenon occurs with toy guns: they require a realistic weight. That's why the...

The ultimate inner barrel that delivers performance that satisfies SPARK custom engineers. "Hirei®" is a high-quality, ultra-precise inner barrel made entirely in Japan, developed with the cutting-edge metalworking techniques of...

A special push rubber for long-range customization, invented by SPARK, that uses a completely new method to apply a powerful hop to BB bullets! Its shape is like stroking a...

Resin magwell compatible with AK series made by E&L / LCT / Arcturus. Recommended for creating civilian AK customizations! Please note that we have not confirmed that this product can...

Picatinny stock base for standard electric M4! By replacing the existing stock pipe, a Picatinny standard stock or stock pipe adapter can be installed. There are also holes for wiring,...

When using a LiPo battery in the crane stock of a next-generation electric gun, the wiring becomes visible... We can solve that problem for you! Please attach it to the...

Material: Stainless steel When I installed an aftermarket stock pipe, the thread length was not enough! This set of three M5 screws is useful for such situations. Set contents M5x30mm...

Material: Resin It can be attached to electric M4 series guns manufactured by various manufacturers with receiver ends of 15 mm or less. Any ends longer than 15 mm must...

Developed with feedback from top shooter Mac Sakai's CAT race gun, This is an ultra-lightweight CNC gearbox shell exclusively for CAT/electronic trigger customization. Made of ultra-super duralumin A7075, it weighs...

High-quality tappet plate springs made in Japan, a set of two perfect for repairs and customizations. It has both moderate flexibility and durability, and has the same feel as Tokyo...

High quality Japanese made tappet plate spring, a heavy duty type ideal for high cycle tuning. It has a strong force that returns the tappet, making it effective when you...

Set of two trigger springs with the same rate as the genuine Marui parts. If the trigger pull is too heavy on an overseas-made electric gun, you can adjust the...

High quality springs made in Japan! By replacing the original trigger spring, the trigger pull becomes significantly lighter. [Product contents]・HAIR TRIGGER SPRING LV.1 [SOFT] DIA0.7mm 1 piece ・HAIR TRIGGER SPRING...

The "DELTA" series is a "high cost performance model" that uses custom-made high-precision carbon steel that has been well-received in the RAVEN01+ barrel, maintaining precision close to that of a...

The "DELTA" series is a "high cost performance model" that uses custom-made high-precision carbon steel that has been well-received in the RAVEN01+ barrel, maintaining precision close to that of a...

The "DELTA" series is a "high cost performance model" that uses custom-made high-precision carbon steel that has been well-received in the RAVEN01+ barrel, maintaining precision close to that of a...