SA STANDARD Steel Gear Set 18:1

Specna Arms STANDARD 18:1 steel gears are a complete set of 3 gears for TM-standard AEG gearboxes. Cast steel gears with an 18:1 ratio are the standard gear set used in Specna Arms airsoft guns. They are designed for builds with springs up to a maximum of M120, and the sector gear features a lug for a sector gear delayer.

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23. 10. 2026 (5 pcs)

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SPARMS199

: Specna Arms

Accessories

  • 10,57 € In Stock

    : Specna Arms

    SPARMS113

    Specna Arms 8 mm steel ball bearings are designed for AEG gearboxes with 8mm bearing seats and gears with 3 mm diameter shafts. The steel construction with a ball bearing mechanism provides rotational support for the gear shafts. The package contains a complete set of 6 bearings required for fitting the three gears in a gearbox.

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  • 5,07 € In Stock

    : Specna Arms

    SPARMS114

    Specna Arms 8 mm steel bushings are designed for AEG gearboxes with 8mm bushing seats and gears with 3 mm diameter shafts. The steel construction provides solid support for the gear shafts. The package contains a complete set of 6 bushings required for fitting the three gears in a gearbox. We recommend lubricating them with PTFE grease.

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  • 33,83 € In Stock

    : Specna Arms

    SPARMS178

    Specna Arms V2 QSC ONE™ gearbox shell with 8mm bushings is a replacement metal shell designed primarily for Specna Arms ONE™ M4 / AR15 AEGs. The package includes 8mm steel bushings. The shell supports the Enter & Convert™ and SAEC™ quick spring change systems, but the specific long screw-in V2 SAEC™ spring guide and mounting screws are not included.

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  • 6,77 € In Stock

    : Specna Arms

    SPARMS440

    Specna Arms PTFE grease in a practical 50 g package is a service lubricant for mechanically stressed parts of airsoft guns. It is particularly suitable for gearbox gears, piston racks and sliding surfaces. The PTFE additive reduces friction and wear while helping to ensure smooth operation of the mechanism.

    6,77 €
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Specna Arms STANDARD 18:1 steel gears

This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are bound to the anareus.cz domain.Specna Arms STANDARD 18:1 is a complete set of cast steel gears for TM-standard AEG gearboxes. The 18:1 gear ratio is the standard configuration also used from the factory in Specna Arms airsoft guns. The set includes all 3 gears required for the gear mechanism of an AEG gearbox. It is therefore suitable as a replacement for the original gear set when repairing or servicing the gun. According to the intended use of this set, the cast construction is suitable for builds with springs up to a maximum of M120. The sector gear features holes for inserting magnets, allowing it to be adapted for certain electronic units that detect the position or movement of the gear, such as ARES EFCS and similar ETU systems. The magnet is not included.

Key features of Specna Arms 18:1 gears

18:1 gear ratio

Standard gear set with an 18:1 ratio, used as the standard configuration in Specna Arms AEGs.

Complete set of 3 gears

The package includes all 3 gears of the AEG gearbox gear mechanism.

Cast steel construction

The gears are made from steel using a casting process and are designed for builds with springs up to a maximum of M120.

Ready for ETU magnets

The sector gear features holes for inserting magnets that can be used with certain ETU systems, such as ARES EFCS. The magnet is not included.

Lug for the tappet plate

The sector gear features a lug for operating the tappet plate (nozzle).

Complete STANDARD 18:1 gear set

Specna Arms EDGE CORE 18:1 steel gears for AEG gearbox

Complete set of 3 steel gears with an 18:1 ratio for TM-standard AEG gearboxes.

Technical specifications

  • Manufacturer: Specna Arms
  • Type: Gear set for AEG
  • Gear ratio: 18:1
  • Material: Steel
  • Manufacturing: Cast gears
  • Compatibility: TM-standard AEG gearboxes
  • Original use: Specna Arms AEGs (excluding series with CNC gears)
  • Recommended maximum spring: M120
  • Number of gears: 3

Package contents

  • 1× bevel gear
  • 1× spur gear
  • 1× sector gear

Frequently asked questions from our store

What gear ratio do the Specna Arms gears have?

The set uses a standard 18:1 gear ratio. This is the standard gear set also used in Specna Arms AEGs.

What spring strength are the gears suitable for?

These cast steel gears are designed for builds with springs up to a maximum of M120.

Can the gears be used with an ETU?

The sector gear features holes for inserting magnets, allowing it to be adapted for certain ETU systems that use magnetic detection, such as ARES EFCS and similar solutions. Specific compatibility must always be verified according to the ETU being used.

Variants18:1 (STANDARD)
ColorSilver
Body/receiver materialMetal
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