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AR-15 A2 Tritium Front Sights

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XS Tritium front sight for the AR features precision machined stress proof steel and white outline/dot to provide front sight visibility in any lighting condition. Each full rotation of front sight gives a 5" shift at 100 yards.
Fits AR front sight housing with front sight detent at 3, 6, or 9 o'clock. Does not fit ARMS back up sight; the blade, front to back, is too long to allow the tower to fold into the down position.
Made in the USA.

View Written Installation Instructions


Prop 65 warning WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or reproductive harm. (For more information go to

Tritium Products — XS Sights warrants all handgun sights containing tritium to be free from defects in material and workmanship. Tritium illumination is warranted to glow for twelve (12) years. This warranty applies only to the original purchaser. Proof of purchase is required for an RMA. If this product is found to be defective, the manufacturer's only obligation is to replace the product at the manufacturer's discretion, provided that the product has not been damaged through misuse, modifications, neglect, or mishandling. XS Sights will not be responsible for product removal or installation labor costs. — Tritium illumination will dim throughout the product's life and is not subject to warranty claims. This warranty shall not apply to the finish on any portion of the product or weathering, as this is considered normal wear and tear. Sights improperly installed are not subject to warranty. — XS Sights only warrants products sold through authorized resellers. — All international sales are final and do not qualify for this warranty policy. Some authorized international resellers carry common warranty items to provide for their customers. For more information, please see our International Shipping Policy.

4 Reviews

  • 5
    A2 Tritium Blade Sight

    Posted by Kyle on May 13th 2023

    These are a great! The white is easily seen in daytime and it’s glows pretty good in the dark. A slimmer look than the Big dot. Thanks again, XS family.

  • 5
    A2 Tritium Stripes

    Posted by Kyle on Apr 21st 2023

    First time buying these. I put one in the A2 front on an aero upper and the other went in MBUS front. Both easy to install and a better sight than the factory thin black post. Bright enough at night to see. Thanks again. Another one lol

  • 5
    Nothing faster!

    Posted by Dan777 on Jan 5th 2023

    Great for a CQB weapon. I have it installed on my 300BLK w/8" barrel.

  • 3

    Posted by D. White on Oct 30th 2022

    The sight is great, but the lack of a tool to get the original front post out is frustrating. They could mold a cutaway for screwing out the original post on the opposite side of the tool they give you on their proprietary installation tool. Also, because of the design of this post, it cannot be screwed into the sight like a typical a2 sight post. It only goes in half of a turn before it locks up from the detent pin. I had to use the smallest Allen key to get between the sight post to allow me to depress the detent so I could turn the sight post several times to get in the correct position. This took 2 people and because the post's front face was turned towards the same side the detent was located when it initially got locked, I inadvertently scratched the face of the sight with the Allen key. So, the sight is nice but everything else about getting it installed correctly is a nightmare!