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C2-11
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12mm x 1.25mm Gas Piston Tap

$15.95
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Angled view of AK-Builder 12mm x 1.25mm gas piston tap, uncoated HSS.

12mm x 1.25mm Gas Piston Tap

$15.95

12mm × 1.25mm Gas Piston Tap

12 mm × 1.25 tap for cleaning or chasing the gas piston threads in the bolt carrier when fitting a new gas piston. Made from high-speed steel (HSS) for long tool life and consistent cutting performance.

Features

  • Size / pitch: 12mm × 1.25mm (metric)

  • Material: High-Speed Steel (HSS)

  • Purpose: chase/clean gas piston threads in bolt carriers for proper piston fitment

  • Use with a tap wrench; apply cutting oil and cut slowly to avoid chip build-up

  • Designed for repeatable shop use

Usage / Notes

  • Run the tap straight and slow; back out frequently to clear chips and prevent binding.

  • Use suitable cutting oil for best finish and tool life.

  • Intended to clean/chase existing threads — do not attempt to cut a full new thread in grossly damaged carriers without proper setup.

  • Right-hand thread (standard)

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