Material:Piano wire

Color: Silver M90  / M100  / M110 / M120 / M130 / 

M140 / M150 / M160 / M 170 /M190

Gross weight:18g /20g/26g/30g/32g/36g/37g/40g

Gearsets and Pinion gear


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SHS 14teeth piston 

SHS 15teeth light weight version piston

SHS 19teeth polygonal piston

SHS 14teeth,half teeth piston

3teeth piston

7teeth piston Material: plastic+steel            CNC machining

Hop Up Chamber () for M4

Plastic type  .Easy to adjust Hop-up instead of adjusting the gear

More stable & accurate than original type

Easy to install, can hide wire



Type:High torque,  short axis(D hole)             Gross weight:180g


We built a 50,000 square meters our own factory in Shenshan Cooperation Zone(near Shantou City).

The factory is not only with the capability of manufacturing metal parts but also plastic parts via CNC, MIM, Plastic injection...tech, including OEM/ODM.Especially, MWSmodular weapon system), Picatinny Rails, GBB precision accessories.

Shenzhen Zhu Cheng Science Technology Co., Ltd. is mothercompany.and keeps the ownership of SHS airsoft brand intellectual property(copyrights) 

ZHU CHENG TECHNOLOGY HONGKONG CO.LTD.is the subsidiary.(2,000 square meters)

  • Client Follow-up

    Client Follow-up

    Last two weeks, our team had visited eastern Europe and enlarged our international business, meanwhile we keep on friendly cooperating with the largest airsoft company in the world.

  • Feature Exhibition Hall

    Feature Exhibition Hall

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  • Factory Site Movement

    Factory Site Movement

    In 2023,We built a 50,000 square meters our own factory in Shenshan Cooperation Zone(near Shantou City).

Copyright @ 2023 . All rightsreserved Mechanical Bathroom company

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