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Questions & Answers
Will they fit lwrci factory back up iron sight's front thread pattern and diameter post with left front detent pin? Manufacturer Answer

I do not believe it will fit. I just saw an LWRC front flip back up sight this weekend and I see the positioning of the detent you're referring to now.
Our front AR sights have 5 notches. If you are looking down from a birds eye view and imagining a compass, where the tritium is at 180 degrees. The notches are at 0, 72, 144, 216, 288. All equally spaced out.

That 288 degree position on our front sight is probably going to be a hair off of what the LWRC is set at which seems to be perfectly 315. (bisecting that upper left quadrant exactly)

by Meprolight USA, Manufacturer, August 31, 2022
well the fit Fab defense Expert Answer

These sights are designed to fit AR-15 rifles.

by Tom B, Gear Expert, November 1, 2021
Customer Reviews
Helpful Positive Review night sight by snappytom, March 1, 2016
Very good illuminated sight for low light or night shooting. I like the two different intensities of them. However I have tried to communicate with meprolight three times via email over three weeks ago. Zero response. Maybe we should see how easy i...
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10/10 found this helpful
Helpful Positive Review Good quality by Alexander Miller, Verified Owner, February 26, 2021
Good quality very bright tritium. Really like having the 4 dot ring on the rear sight. A pain to install if you don't have an ar front sight tool. It is not compatible with Troy fixed rear sight. Learned the hard way :/
1/1 found this helpful
Helpful Positive Review Great sights overall by The HUNK, November 19, 2014
These sights are excellent to give your M4/AR-15 iron sights nighttime capability. The four dot rear aiming pattern in particular gives you precise orientation for the front sight to accurately engage targets in low to no light. The only reason tha...
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6/7 found this helpful
Helpful Positive Review Perfect upgrade for A-1 factory sights. by Nate, Verified Owner, October 29, 2018
The front sight post is the correct round version for A-1 rifles (Fit my Colt SP1 with no issues) and glows very bright. The rear sight (4-dot version) does not glow as bright as the front and I was initially concerned. However, in low light conditio...
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8/9 found this helpful
Helpful Positive Review Great product, beware of fit by Legacy Reviewer, Verified Owner, January 29, 2013
This is a great product for your AR style firearm sights IF you have the A2 style rear sight. The tritium is bright, easy to see and the four dots on the rear make alignment quick and easy. However, these DO NOT fit Troy rear sights. I have an A2 car...
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7/8 found this helpful
Helpful Positive Review Meprolight 4 dot sight set by Legacy Reviewer, Verified Owner, April 1, 2012
Other than front sight not staying 100% straight love the product. Pros: Bright Cons: Cost, Front sight not 100% stationary
3/3 found this helpful
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Product Info for Meprolight TRU-DOT Self Illuminated AR-15 Rifle Night Sights

Meprolight Self Illuminated Rifle Night Sights for AR 15 Rifles are custom made to work with AR15 / M-16 semiautomatic rifles. The tritium green dot sight system of Tru-Dot sights offers the best low light performance of any night sights. The Meprolight sights system provides three self-lit dots as an aiming reference, identical in appearance and location under all light conditions. Meprolight Tritium & Fiber Optic Night Sights are renown for their quality performance. Get the Meprolight advantage with the brightest night sights available today. Meprolight sights are used and trusted by military personnel and law enforcement officials. All Meprolight Tru-Dot sights are covered by a 12 years usable illumination warranty to original purchaser.image

The Meprolight ML31615 is a front sight for use on AR style A1 rifles and A2 rifles. This sight has a round front post, which is much narrower than the square post currently manufactured on the AR rifles. This thinner post gives more accuracy since it does not cover as great an area of the target at distances. The ML31615 and front sights are two-piece for alignment. Once you have the rifle sighted in for a particular distance, should the tritium light source not be facing you, simply depress the detent and rotate the sight to align the light source.

Meprolight Night Sights give shooters a handgun sighting system made for rapid instinctive aiming, with no transition needed from day to night use. The Meprolight Tru-Dot system adds no weight and occupies zero space - a critical concern in external pistol sight design. The night sights withstand prolonged immersion in commonly used solvents and cleaning compounds. Quality and safety count at Meprolight. AllTritium & Fiber Optic Night Sights from Meprolight meet strict quality standards before being shipped from the factory. All processes are performed, controlled, and monitored to demanding quality levels in Meprolight's modern handgun sight design, production, and test facilities, with the most experienced technical staff in the industry. When quality counts, be sure with Meprolight.

We are your number one source for Meprolight Tritium Night Sights. We stock a huge selection of tactical gear including pistol sights, rifle sights, and night sights, including Meprolight sights and many other leading brands. We can meet your hunting, tactical, and service needs with a range of hunting accessories and gun accessories including rifle scopes, night vision devices, tactical scopes, spotting scopes and much more. Everything we sell is backed by our rock solid customer service and our guarantee of 100% customer satisfaction.

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Specifications for Meprolight TRU-DOT Self Illuminated AR-15 Rifle Night Sights:

Manufacturer: Meprolight
Color: Black
Gun Model: M16, M4, AR-15
Gun Make: AR Platform
Front Sight Color: Green
Rear Sight Color: Green
Front Material: Tritium
Height: 0.7 in
Gun Type: Rifle

Features of Meprolight TRU-DOT Self Illuminated AR-15 Rifle Night Sights:

  • Self Illuminated Night Sight - No batteries or switches, always ready when you need them;
  • Operates under all weather conditions;
  • The brightest night sights available today;
  • Totally integrated day and night sighting;
  • Maintenance free;
  • Can be mounted directly with no weapon modifications;
  • Over 4,500,000 systems in use, worldwide;
  • Tests by marksmen show an increase of over 85% in hit capability;
  • Strongest worldwide comprehensive warranty in the industry

Package Contents:

  • Meprolight TRU-DOT Self Illuminated AR-15 Rifle Night Sights

Meprolight TRU-DOT Self Illuminated AR-15 Rifle Night Sights Orderable Models

List of Orderable Models

Meprolight TRU-DOT Self Illuminated Rifle Night Sights, AR-15/M16/M4, Green 2 Dot Set, Black, 1316183101, 1316183101 , MPN: 1316183101 , UPC: 840103137230 , Code: MR-IRN-MPRRS-1316183101
Meprolight TRU-DOT Self Illuminated Rifle Night Sights, AR-15/M16/M4, Green 4 Dot Set, 1316193101, 1316193101 , MPN: 1316193101 , UPC: 840103137261 , Code: MR-IRN-MPRRS-1316193101
USED, Meprolight TRU-DOT Self Illuminated Rifle Night Sights, AR-15/M16/M4, Green 2 Dot Set, Black, 1316183101, 1316183101 , MPN: 1316183101-EDEMO , Code: MR-IRN-MPRRS-1316183101-EDEMO-RE-C
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