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AmeriGlo’s AR Tritium front sight post enhances the performance of your Magpul® MBUS® Pro front sight by bringing the benefits a self-illuminating night sight to your AR-15. The AR Tritium delivers a clear, crisp sight picture with a stand-out aiming point that really helps you locate your front sight quickly when you’re operating in low light, especially in high-stress situations.

The AmeriGlo AR Tritium post is a drop-in replacement for the factory post in your Magpul® MBUS® Pro front. It provides the same range of elevation adjustment as your original post.


Thinnest Tritium AR-15 front post available - .090" wide

Sturdy machined steel construction

Tough, non-reflective Black Nitride finish

Front post only- you have to bring your own MBUS® Front Sight!

Use #100-027-695 for plastic MBUS® Pro & standard, mil-spec A2 sight


You can benefit from the AR Tritium’s enhanced sighting capability whether you’re working directly with your "iron, sights or co-witnessing them through a non-magnifying optic. All of this means that when the lights are low, you won’t lose precious seconds of reaction time while you hunt for your front sight!