• The individual components of the SPARK Cat Stroke and Cat Punch Face HOP Tensioner by AIRSOFT97, displaying the black hard rubber and light blue soft silicone flat push nubs isolated on a white background.
  • A 3D CAD digital rendering highlighting the flat, curved pressure face profile and cylindrical retention ridge design of the SPARK HOP tensioner by AIRSOFT97.
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SPARK (Airsoft97)

SPARK “Cat Stroke” / “Cat Punch” Face HOP Tensioner by AIRSOFT97

SPARK “Cat Stroke” / “Cat Punch” Face HOP Tensioner by AIRSOFT97

$14.99 USD
$14.99 USD
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The SPARK "Cat Stroke" / "Cat Punch" Face HOP Tensioner delivers an engineered contact surface solution designed to maximize flight stability and accuracy in custom AEGs. Manufactured in Japan by AIRSOFT97, this premium single-piece rubber push-nub replaces standard cylindrical tensioners with a flat, elongated "face" geometry. This contour applies even, prolonged vertical friction directly across the hop-up bucking, optimizing standard bb trajectory and long-range groupings. This high-performance tensioner serves two crucial engineering purposes:
  1. Extended Contact Profile: Creates a prolonged back-spin contact patch that securely stabilizes light-to-heavy bb weights without pinching or causing inconsistent side-to-side drift.
  2. Chamber Alignment: The precision-molded profile stays perfectly centered inside standard aftermarket hop-up arms, eliminating the common "nub-tilt" that causes unexpected flyers during high-velocity semi or full-auto firing cycles.

Technical Specifications:

  • Material: High-grade elastomeric silicone rubber compound for consistent friction response
  • Tension Profile: Flat Face-Type long contact patch
  • Package Contents: 1x SPARK Face HOP Tensioner (Single Piece)
  • Compatibility: Standard M4/M16 rotary hop-up chambers (including SPARK Standard Chambers), Version 2/3 AEG hop-up arms, and traditional hop-up buckings
  • Origin: 100% Made in Japan
  • Design: Micro-contoured flat-press block engineered to prevent air-seal degradation
Tech & Safety Warning: To achieve optimal long-range flight trajectory stabilization, ensure the wide flat face of the tensioner aligns perfectly square within the hop-up window before final barrel lockup.
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