The XS Sights AR-15 A2 Tritium Front Sight (brand part number AR-2001-6) replaces a factory mil-spec front sight with a precision-machined, stress-proof steel post built around a vertical tritium vial. A white outline around the tritium keeps the sight visible in daylight as well as low light, so a shooter gets one sight picture in any condition. Each full rotation of the sight post delivers a 5 MOA elevation shift, roughly 5 inches at 100 yards, for fine zeroing. The square top post measures 0.105 inch wide and drops into any standard AR front sight housing with a detent at 3, 6, or 9 o’clock, though it will not fit an ARMS back-up sight since the blade runs too long front-to-back for that tower to fold down. Made in the USA.

Key Specifications

• Machined from stress-proof steel.
• Uses a vertical tritium vial for low-light visibility.
• Features a white outline for daylight visibility.
• Delivers a 5 MOA elevation shift per full rotation.
• Square top post measures 0.105 inch wide.
• Fits AR front sight housings with a detent at 3, 6, or 9 o’clock.
• Does not fit an ARMS back-up sight tower.
• Made in the USA.

Frequently Asked Questions

Does this sight work in the dark? Yes, a vertical tritium vial with a white outline keeps it visible in any lighting condition.

How much elevation adjustment does it have? 5 MOA, or about 5 inches at 100 yards, per full rotation.

Will this fit an ARMS back-up sight? No, the blade is too long front-to-back to allow an ARMS tower to fold into the down position.

Buy the XS Sights AR-15 A2 Tritium Front Sight, Green with White Outline

Get one sight picture in any light with a rugged, mil-spec-pattern tritium front sight. Order the XS Sights front sight from our gun sights selection at our Lubbock, Texas gun shop for fast, direct shipping.