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10-225 Geissele Gas Block Roll Pin Tool

Manufacturer: Geissele Automatics
SKU: GAT10-225
Manufacturer part number: 10-225
UPC: 854014005281
Availability: Out of Stock - backorder and will be shipped once in stock.
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This tool is designed to securely hold a 0.078” diameter roll pin to start the pin installation in a gas block. The hole in the tip of the tool is sized so that the roll pin will need to be pressed into the tool first the roll pin will not just slide in.


  • Stand the roll pin on a hard surface and tap the tool onto the pin to seat it in the tool.
  • When the hole in the gas block grabs the roll pin the pin will collapse enough so the tool can be removed from the roll pin.
  • All then is needed is a tap with a punch to seat the roll pin in the gas block.
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