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  • Regular price $8.95
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You need to drill a hole in the Upper of the AAP-01? 
Use this tool to get the perfect hole position for installing the Stalker TDC Kit.

  1. Disassemble the upper rail (if u have any installed) by unscrewing the 2 screws.
  2. Remove all components from the AAP-01 upper as shown in the video below.
  3. Place the Stalker TDC Top rail tool and use the 2 stock rear sight screws to tighten the tool.
  4. Use a 2mm drill and use the hole in the circle to drill the hole in the AAP-01 upper.
  5. Remove the Stalker TDC top rail tool from the AAP-01
  6. Flip upper and drill the 2mm hole with a 4mm drill (Guide a bit to get a perfect hole in the middle).
  7. If u want, Use the same Stalker TDC top rail tool to drill a hole in your rail.
  8. Assemble the rail back on your AAP-01.
  9. Assemble your hopup and upper back together as shown in the video below.
  10. Your AAP-01 is ready for TDC adjustment with hex key from outside.
  • What's in the package?

    • 1x Acrylonitrile Butadiene Styrene (ABS) plastic TDC Tool