Handgun Sights


Self-Illuminated Mepro R4E Pistol Sight
For STD Frame 17,17L,19,22,23,24,25,28,31,32,33,34,35,37,38,39,45
hover_state Mepro Tru Dot
12 Year Warranty
Tritium Powered
Highly Durable Structure
Brightest Dots
hover_state Mepro Tru Dot


MEPROLIGHT® combat-proven self-illuminated night sights enable you to upgrade your capabilities to hit stationary or moving targets under low-light conditions with dramatically increased hit probability.

Test results by marksmen and journeymen level shooters have shown an increase of over 85% in hit efficiency, using Meprolight® self-illuminated day/night sights.

TRU-DOT® models offer a handgun sighting system for improved rapid instinctive aiming which requires no transition from day to night use. Day and night, the shooter’s aiming reference is three solid dots, identical in appearance and location under all light conditions.

Designed as replacement parts for the standard weapon sights, Meprolight’s Self-Illuminated night sights can be mounted directly with minor modifications.

Superior production methods and rigid quality control have made Meprolight® the first choice among law enforcement agencies, defense decision-makers, and major weapon manufacturers. A full quality program, certified to ISO-9001:2008 and complying with NATO and US Military Specifications is in place. All products and processes at Meprolight® are performed, controlled, and monitored to these demanding quality levels.

Meprolight® leads the world in OEM and after-market self-illuminated sights for handguns. Designed to replace the existing front and rear sights, the highly visible Tru-Dot® sights are perfect for daylight, low-light, and nighttime conditions.

Meprolight® is Responding to users’ needs, our Mepro Tru-Dot® R4E models are available in various tritium color combinations of green and orange (3 lines on the rear sight and 1 dot on the front sight) with colored white line on the front sight below the dot.

Proven Advantages

First Choice of leading firearm manufacturers
Millions of sets sold
No Batteries, no switched - always ready for action

Tech Specs

Available Colors Green, Orange
Available SKUs Green Front/Green Rear - 0122243101
Green Front/Orange Rear - 0122243301
Orange Front/Green Rear - 0122243601
A - Front blade width 3.9mm (0.15 in)
B - Vial height 5.9mm (0.23 in)
C - Front blade height 4.8mm (0.19 in)
D - Overall front sight height 7.6mm (0.3 in)
E - Overall length 11mm (0.43 in)
F - Overhang 4mm (0.16 in)
G - Tritium height 6.9mm (0.27 in)
H - notch depth 3.3mm (0.13 in)
I - Rear width (mm) 19mm (0.75 in)
J - Notch width 4.2mm (0.17 in)
K- Blade height 6.5mm (0.26 in)
L - Overall height 8.3mm (0.33 in)
M - Overall length 15.6mm (0.61 in)
N - Overhang 4.3mm (0.17 in)