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KJW MK1 Ruger NBB 17 Hop unit close up

This is a view of the hop unit. As you can see I have used ptfe tape to try and improve the seal. The hop unit is only a push fit on the barrel and the hop rubber is only on part of the barrel so does not provide a good air seal.

From the album:

KJW Ruger Mk1 NBB Pistol Mods

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Photo Information for KJW MK1 Ruger NBB 17 Hop unit close up

Taken with Canon Canon PowerShot A710 IS

  • 5.8 mm
  • 1/100
  • f f/3.5
  • ISO 800
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