AR-15/M-16 XS® Upgrade: Big Dot® Xpress Threat Interdiction™ Sights

Mar 27, 2014 No Comments by

March 2014 – Fort Worth, TX – First introduced in 2012, XS® Sight Systems has extended the Xpress Threat Interdiction™ (XTI™) product line to include Big Dot® Tritium Express and 24/7 Tritium® Angle Mount Back-Up Iron Sight upgrades for your AR-15/M-16. Designed for firearms equipped with handguard mounted top picatinny rail systems, this low-profile night sight option is an excellent addition for Tac-optics class 3-gun shooters, home defense and patrol rifles with magnified optics.

Packaged for right-handed shooters, these sights are ambidextrous as left-handed shooters simply flip the rear sight and base for easy do-it-yourself installation. Sight kit comes complete with blue locking thread compound to apply to rear sight once windage is determined; elevation is adjustable by pressing the detent and rotating the front sight.

XS® upgrades available in Big Dot® and Standard Dot® Express sets that feature a Tritium Front with White Stripe Rear; priced msrp $150. XS® 24/7 Big Dot® and Standard Dot® Express sets feature a Tritium Front with Tritium Rear; msrp $180.

AR-0007-3 XTI










About XS® Sight Systems:
XS® Sight Systems is a family owned business located in Fort Worth, Texas. For over 18 years XS® has been a leader in precision manufacturing of practical hunting and combat effective tactical products for civilian, law enforcement and military professionals. XS® 24/7 Tritium gunfighter sights utilize a shallow rear V and visible front Dot, designed for quick front sight acquisition in full to low lighting conditions. The Fastest Sights in Any Light.™

Find upgrades for your personal conceal/carry, rifle and shotgun aftermarket by visiting or emailing Available on manufacture models direct thru Marlin, Remington, Smith & Wesson, Ruger, DPMS Panther Arms, Mossberg, North American Arms, Colt, Kahr, Beretta, Springfield Armory and Henry Rifles.


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