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V Piston Head Set

The MEC V piston head set for gas blowback pistols is an improvement over the stock pistol piston head, especially those with metal slides. This rubber piston head is designed to improve the airtightness and withstand high impact pressure. The “v shape” ramp cut at the base of the inner wall of the piston head provides fast responsiveness on air-sealing. The better sealing that the MEC V piston head provides translates to better-felt recoil and noticeably better gas efficiency. These piston heads have two sizes: 13 to 14mm or 14 to 15mm fit into multiple GBB pistol models with 13 to 14mm or 14mm to 15mm nozzles. Each size also comes with two different hardness, the black one (60 degree) for colder weather or for use with regular power gas and the purple one (70 degree) for warmer weather or use with high power gas.

MEC - V Piston Head


  • Fast responsiveness on air-sealing

  • Designed to withstand high impact pressure.

  • Stabilized Performance.

  • Suitable for GBB Pistol with 13 to 14mm or 14 to 15mm nozzle

MEC - V Piston Head


  • Material:

    • Rubber

  • Weight:

    • 8g (6pcs piston head with package)


  • GBB Pistol with 13 to 14mm or 14 to 15 mm nozzle

R-Type Piston Head

The MEC R-Type piston head for Tokyo Marui / KWA pistol GBB is an improvement over the stock one that comes with the pistol. This particular revolver’s cylinder-front-view design brass piston head equipped with a 6-hole air intake in order to improve the airtightness and air sealing with the included O-ring (including 3 size of O-ring: red, black and green).

MEC - R-Type Piston Head


  • Reinforced with brass.

  • O ring for better air seal.

MEC - R-Type Piston Head


  • Material:

    • Brass

    • Rubber

  • Weight:

    • Marui-14 (1.8g)

    • Marui-15 (2g)

    • KWA-14 (2.5g)

    • KWA-15 (3g)

  • Manufacturing Process:

    • Precision Machining


  • Marui-14:

    • KJ KP-17

    • 1911

    • G17 Gen.3

    • P226

    • TM Hi-Capa

  • Marui-15:

    • G19 / WE G17

    • G17 Gen.4

    • FN 5-7

    • TM PX4

  • KWA-14:

    • MP7

    • M93R

    • M9

    • KWA TT-33

  • KWA-15:

    • VZ61

    • Mark 4

    • MP9

    • MK23

    • KWA HK45

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