AR-15/M-16 XS Upgrade: Big Dot Xpress Threat Interdiction Sights
OutdoorHub 03.28.14
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. On display at NRA 2014 in XS® Booth# 6449 and available through XS Supporting Exhibitors Brownells and Natchez Shooters Supply.
