Front Sight Height Math:
In order to co-witness your front sight to the IDRS, you will need to do some math. You will need calipers for this.
Subtract the IDRS height installed in the optic (See chart in photos or below) from your depth of cut (Z). Call this figure O.
Next subtract your front sight height (X) and rear sight height (Y). Call this figure H.
H minus 0 will give you the suppressor height sight that you will need in order to co-witness your front sight.
PMM IDRS
Machined in-house out of 6061 aluminum, hardcoated mil-spec black anodize
PMM IDRS Installation:
Hand tighten using the provided L-key just until IDRS is snug in optic. We do not recommend using loctite.
IDRS Height Installed in Optic:
RMR IDRS- 0.450″
RMR-CC IDRS- 0.450″
SRO IDRS- 0.475″
RMR-HD IDRS- 0.475″
DPP IDRS- 0.581″ (Adjustable. Min height)
See Below For Compatible Optics.
RMR & RMR-cc:
- Trijicon RM06
- Trijicon RM07
- Trijicon RM09
- Trijicon RMCC06
- Trijicon RMCC07
SRO:
- Trijicon SRO1
- Trijicon SRO2
- Trijicon SRO3
RMR-HD:
- Trijicon RMHD1
- Trijicon RMHD2
Leupold DPP:
- Leupold Delta Point Pro
Not Compatible:
- Trijicon Dual-Illuminated Reflex Sight
- Trijicon RCR
- Any other optics not listed above
Customer Review by @TacticalExpedition
PMM Disclaimer:
PMM reserves the right to make esthetical design changes. While we try to accurately represent our current product offerings’ designs, there may be some esthetical variation from the product posted on this page and the product you receive.

























