Custom Parts (4861)

RETRO ARMS piston head, POM is made of resin and the weight of the piston head + O-ring is 3.6g. It weighs just 8.7g including the thrust bearing and fixing...

This is a reinforced piston designed specifically for the company's TSG . The body is made of injection-molded fiber-reinforced nylon, and the rack gear is made of fully machined spring...

This is a reinforced piston specially designed for DSG. The rack gear has 9 teeth and is compatible with both 8T and 9TDSG. The body is made of injection-molded fiber-reinforced...

19T piston for various long gearboxes. The rack gear is made of spring steel (56SiCr7) and is fully machined and salt hardened. The second rack gear is fully cut from...

This is a high-strength piston that combines a nylon + fiber injection molded body with a rack gear made of spring steel (56SiCr7). Compatible with Φ15mm standard electric gun springs,...

Nylon + fiber injection molded body with spring steel (56SiCr7) rack gear This is a high-strength piston that combines Compatible with Φ15mm standard electric gun springs, The weight is 16.27g....

Nylon + fiber injection molded body with spring steel (56SiCr7) rack gear This is a high-strength piston that combines Compatible with Φ15mm standard electric gun springs, The weight is 16.97g....

This is a specially shaped hop-up packing for the company's CNC Hop Up Chamber AR15 ULTRA . The material is nitrile rubber and the hardness is Shore A 55. This...

Hop-up packing for standard AEG. Made of NBR (nitrile rubber). The lineup includes Shore A55 (soft) and Shore A70 (hard) in terms of hardness. ---------------------------------------------------------------------------------------------- It is a protrusion type...

Used for the company's CNC Hop-Up Chamber AR15 UNI It is a complete set of spare parts. Perfect for repairs or customization.

Used for RETRO ARMS hop-up chambers Collet nut for fixing the barrel. This is a part made specifically for RETRO ARMS chambers, with special threads on the inside. The barrel...

This is a set of cushion rubber hops made by RETRO ARMS. This set includes barrel-shaped and concave POM machined parts.

This is a set of cushion rubber hops made by RETRO ARMS. The non-hole side is made of silicone rubber and has a soft Shore hardness of 60 degrees. The...

Resin barrel clip. Can be used with various AK chambers.

Resin barrel clip. Can be used with various M4 chambers.

This is a standard electric AK chamber made from machined duralumin. It is the same slide lever adjustment type as the genuine product, By inserting an O-ring into the lever,...

This is a C-clip designed specifically for the company's CNC Hop Up Chamber AR15 ULTRA . For repairs and spare parts.

*Note* The maximum outer diameter of the part that goes into the outer barrel is Φ12.95mm. It fits most outer barrels, but It is 1mm thicker than the genuine Tokyo...

This is a standard electric AR15/M4 chambered from EN AW7075-T651. It can be used with the company's V2 series gearbox and Tokyo Marui-compliant Ver.2 gearbox. *Note* Since the shape is...

This is a spare screw set for use with RETRO ARMS gearboxes . The set includes M3x12 3 pieces M3x6 3 pieces M2.5x3 1 piece Tappet plate spring post 1...

This is a spare screw set for use with RETRO ARMS gearboxes . The set contents are M3x12 4 pieces M3x6 3 pieces M2.5x3 2 pieces 1 switch holder 2...

This is a special tool used to attach and detach the company's CNC Screw QSC . It has protrusions that fit into two holes on the head. The outer periphery...

Made entirely from EN AW7075-T651 ultra-super duralumin High precision, high strength gearbox. Ver.3 type gearbox compatible with overseas AKs such as LCT and E&L. When attaching to Tokyo Marui's standard...

Included with the company's CNC gearbox M4,416 TM NGRS (8mm) This is a spring guide sold separately. Genuine next-generation electric gun Φ14mm standard spring with narrow inner diameter Piston 14.5...