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KWA MP9 Main Seal Part 129 KMP9 Piston Lid

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KWA KMP9 Part 129 KWA M9 Part 34 Main Seal

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KWA M9 & MP9 main Seal Piston head.


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The KWA M9 PTP & KMP9 piston lid, or piston head, is the main seal inside the M9 & MP9 blowback chamber. If your KWA KMP9 or KMP9R or M9 PTP main seal is worn out replacing it can greatly increase your gas efficiency.

All KWA parts are top-quality replacement or repair parts, and are the only parts recommended for use with KWA Gas Blowback Pistols.

KWA MP9 Part 129 KWA M9 PTP Part 34 Features

  • Made out of flexible rubber for better seal 
  • Fits KWA MP9 & MP9R
  • Fits KWA M9 PTP NS2 and M9 Tactical NS2
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