HK German Go No-Go Feeler Gauge


HK German factory HK manufactured Go, No Go, boltgap gauge for checking bolt gap.
The perfect companion tool for all HK roller lock firearm owners. Each tool includes the go no go range of factory recommendation specifications one 0.1mm and the other 0.5mm. This factory tool works with all  HK 90 series family of firearms that belong to the 90 series or legacy series of firearms that are roller locked delayed blowback such as the following:

  • HK G3, 91, SR9, SAR8, CETME
  • HK MP5, 94, MP5K, SP89
  • HK93, 33, 53
  • Many other clones and customer builds

As covered in the factory MP5 maintenance manual head space is correct when the bolt gap between the bolt head and the bolt carrier amounts to 0.1-0.5mm. It may NOT be possible to introduce the 0.5mm feeler gauge. Anything lower than 0.1mm should be adjusted to be in compliance with factory HK recommendations.
Each tool is made from steel and marked with the HK marking and corresponding part number for the item number. A rare and hard to find factory HK German part!

  • Origin: German
  • Brand: Heckler & Koch

Out of stock

SKU: HKP-17052

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