SD40 from my other post I noticed two unused holes (circled in red), small one threaded. What are these for?
SD40 Hole ID (1 Viewer)
- Thread starter 1962fj40
- Start date
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- Joined
- Sep 26, 2003
- Threads
- 117
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- 11,207
- Location
- Lancaster, Ohio, USA
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- www.tlcperformance.com
The small hole is threaded for a screw to retain the AP stand.
Larger hole is for an o-ring to hold the spare needle rod.
Larger hole is for an o-ring to hold the spare needle rod.
