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Meprolight does not provide any information in regards to the difference. You would need to contact the manufacturer directly as they do not even list these options themselves.
The Meprolight ML31318FS Front Night Sight for the AR15, M16 A1/A2 is a great item for the money.
Exact replacement for factory sight post. It is easy to install and adjust once installed. To install you will need a 5 prong front sight tool to ma...
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As good or better than the competition at a far greater price
The sight shines brightly and really helps at dusk and dawn, and in conjunction with a flashlight or weapon light, lets you know if your sights are aligned on target
The Meprolight front post sight with very small tritium insert is fairly easy to install, need a 5 prong A2 front sight tool.
Once installed, the top post rotates independent of the stem, so the Tritium can actual rotate away from the front orientat...
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I was hoping for something useful in dim light. This sight is hard to pick out in anything other than complete darkness. Not nearly as good as the old military tritium sight post. The little spinner design is great, but they need to make the tritium ...
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Meprolight AR15/M16 Post Front Sights has been discontinued by Meprolight and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts yourself to try and find the perfect replacement for you!
Product Info for Meprolight AR15/M16 Post Front Sights
The Meprolight AR15/M16 Post Front Sight gives you the green light for better aim. This night sight from Meprolight fits the AR15/M16 models and can even be used on A1 or A2 rifles with no problems. The Meprolight A1/A2 Post Front Night Sight provides light when out and about at night.
Features of Meprolight A1/A2 Post Front Night Sight:
Unequaled Low Light Performance
Brightest Night Sights Available Today
Used by Military & Law Enforcement
All sights are covered by a 5 years usable illumination warranty to original purchaser