The Ultra Low 2011 Rear Sight Plate, created for STI® DUO™ pistols, will lower your RMR mounting height by .100″. It also comes with a rear sight designed in collaboration with 10-8 Performance. This plate fits Trijcon RMR and SRO, and also fits the Holoson models that are compatible with the RMR footprint. As with our other V4 plates, this unit features replaceable steel t-nuts. Also comes with all the mounting hardware you need for RMR/SRO and Holoson, as well as the proper driver bits and vibra-tite thread locker for mounting.
- .195″ height – for full sized Staccato 2011 DUO models (P 4.15″, P 4.45″, XC) in conjunction with CHPWS Ultra Low Profile Adapter Plate
- .210″ height – for 3.9″ barrel Staccato 2011 DUO models (C, C2) in conjunction with CHPWS Ultra Low Profile Adapter Plate
NOTE: If you have a pre-2020 DUO pistol that does NOT have a 4mm threaded hole above the firing pin retainer from the factory, you’ll need to have one milled to anchor this adaptor plate to your slide. See the CHPWS site for more info and to get this upgrade:
DUE TO TOLERANCE VARIATIONS BETWEEN SLIDES AND BETWEEN OPTICS, SOMETIMES THE CHPWS ADAPTER PLATE NEEDS MILD FITTING. WE RECOMMEND HAVING A GUNSMITH FIT THE PLATE. WE DO NOT ACCEPT RETURNS ON CHPWS KITS IF THE MAIN PACKAGE THE KIT COMES IN HAS BEEN OPENED.