IDPA - Gun Modification Question

[uscbigdawg]

Can't find a clear ruling in the book (admittedly didn't look very hard) but wanted to know in ESP, what's the rule on doing some machine work on the slide. No holes or cuts that go through the slide, but things like flattening the top and doing chamfer cuts in the slide, etc.

In a nutshell, I use a fairly stock 1911 and want to give it some flare. Like this photo, but obviously, without the cuts that go all the way through:

Freedom Gunworks - Front Sight

Thanks a bunch,

Rich

[stretch64]

From the rulebook and addendum:
EXCLUDED Modifications (NON-Inclusive list):
1. Full length dust covers of carbon or stainless steel.
2. Oversize diameter magazine release buttons.
3. Trigger shoes.
4. Slide lightening (see “slide, lightening” in glossary for
further information).
5. Refer to Appendix ONE-A. Firearms-Non-IDPA-Legal
Modifications.

Slide, lightening: Removal of portions of the slide to gain a
competitive advantage.

3. Enhanced Service Pistol Division (ESP)
Addition to PERMITED Modifications/Features page 22
15. Extended slide release.
16. Customization of the slide by adding front cocking
serrations, engraving, tri-top, carry melts and high power
cuts.
17. Ambidextrous or right side magazine releases

[Bob Hostetter]

A recent update from IDPA confirms you are allowed to flat top, tri-top the slide as well as cut any type of front and/or rear serrations, and cut a Hi-Power panel. No holes thru the slide.

[Corbin Dallas]

Bob, did we discuss this on the idpa forum?

[stretch64]

In the example pictured, the flat top/tri-top cut would be legal. The lightening cuts would not, even if they don't go all the way through the slide.

[himurax13]

What exactly is a High power cut? Can a Fill length dust cover be slightly trimmed so that it would no longer be a full length dust cover?