by Shooting Illustrated Staff posted on April 21, 2011 Optics Support NRA Shooting Illustrated DONATE XS Sights are excellent aftermarket additions to any defensive firearm. In this article handgun sights, iron sights, rifle sights, shotgun sights, Tactical, tritium, XS Sight Systems Related Stories XS Sight Systems Using Iron Sights on an AR-15 Gallery XS Sight Systems Introduces its XTI AR-15 Angle Mount Back-up Iron Sights First Look: XS RAM Night Sights SHOT Show: Meprolight to Launch Two New Families of Tritium Night Sights for Pistols Most Popular The Newhall Incident Revisited Top 5 'Budget-Priced' .50 BMG Rifles Review: Smith & Wesson FPC Carbine 10 Budget-Priced .22 Rifles Under $200 How Short is Too Short? First Look: CZ Shadow 2 Compact