C&H Precision BUIS (Back Up Iron Sights) were specifically designed to be used with the OEM Optic Ready Slides and Direct Milled Slides.
LowWitness 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.
Red Dot Industry Experts believe Back Up Irons should not be a vision blocker and should be as low as possible but still useable if needed.
LowWitness® Back Up Iron Sight heights provide you the lowest usable sight height without being a vision blocker “Everything you need, nothing you don’t”
DISCLAIMER: This product is not manufactured, authorized, endorsed,
or warranted by GLOCK. GLOCK does not warrant or represent that
this product is compatible with GLOCK pistols.
Eric Jorgens –
Excellent products and service.
Carl Hubbell –
Great products. Return customer. Would like to confirm this set will work for the new Glock Gen 6 G45 MOS with Eleven 71 adapter plate for Holosun 507C. Looking for the minimum lower third/1/8″ BUIS black front and rear. Thanks for any help you can provide.
Robb Jensen –
Great sights and work wonderfully with my Unity Tactical slide with a Holosun 407C.
schackney212 –
Great quality and the shipping was fast. The sights were an exact fit. Highly recommend
Joshua Taylor –
Buck and His crew know what’s up when it comes to anything firearms. Did my departments G17’s with a amazing turn around. Great sight that don’t make your optic to busy. If you policy mandates iron backup’s , these are one of the best options.