BUIS for RMR / Holosun Fits GLOCK or Walther PDP – OPTICS READY / DIRECT MILLED SLIDES Black Front and Rear


Front Sight: .285″ Tall Black
Rear Sight: .285″ Tall Black
For Use With But Not Included:
Pistol Model: GLOCK 17/17L/18/19/20/21/23/24/26/27/29/30/31/32/33/34/35/38/39/40/45/47 or WALTHER PDP
Optic Cut:  All Standard GLOCK MOS, GLOCK Slides with Direct Mill Optics Cut at .125″ deep & WALTHER PDP’s
Red Dot – Trijicon RMR, Holosun 407C, 507C, 508T, 509T
C&H Precision Optics Plate – GL-RSH, GL-509T or Direct Milled Slides of Glock Pistols, WPDP-RSH
(2 customer reviews)

In stock

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.

Additional information

Weight .15 lbs



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2 reviews for BUIS for RMR / Holosun Fits GLOCK or Walther PDP – OPTICS READY / DIRECT MILLED SLIDES Black Front and Rear

  1. schackney212 (verified owner)

    Great quality and the shipping was fast. The sights were an exact fit. Highly recommend

  2. Joshua Taylor (verified owner)

    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.

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