BUIS for Sig Sauer P320 w/ C&H Optics Plate For Trijicon RMR & Holosun 407c/507c/508t Black Front .310
- C&H Precision$18.49Buy
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From C&H Precision
**This front site is for Trijicon RMR , Holosun 407c, 507 C & 508 T / If you plan on using a Trijicon Sro you will need this Front Sight ** - BUIS for Sig Sauer P320 w/ C&H Optics Plate For SRO Black Front .350 C&H Precision BUIS (Back Up Iron Sights) were specifically designed to be used with the OEM Optic Ready Slides and Direct Milled Slides. LowWitnessA(R) is defined as a BUIS (Back Up Iron Sights) that sits between .075 to .100 into the optic FOV (Field Of View) which is equivalent to lower 1/6 to lower 1/8. True Co-Witness blocks half of your red dot visible window / FOV while Lower Third blocks one third of your visible window / FOV.