Geissele Automatics SSA X w/ Lightning Bow Trigger The SSA-X with Lightning Bow trigger features a Nanocoated wide body trigger and Nanocoated hammer, with a special chrome nitride disconnect that combines advancements in coating design to bring about the next evolution of the venerable SSA. These coatings dramatically enhance wear and corrosion-resistance and keep the trigger running smooth and breaking clean even after heavy use with minimal lubrication. The SSA-X with Lightning Bow trigger is a non-adjustable trigger, which is light enough for accurate and precise shots, but forgiving enough for dynamic close in work as well. The Geissele Super Semi-Automatic (SSA) X trigger is based on the SSA, a semi-automatic only version of Geissele Automatics Super Select-Fire trigger. The SSA is a non-adjustable combat trigger that is a precision two-stage trigger and allows precise and accurate trigger control. The two-stage design allows the trigger to be light enough for accurate and precise shots, but forgiving enough for CQB. The SSA is safety certified by Crane Naval Surface Warfare Center.  Please note, these triggers are designed for mil-spec AR15/M4 carbine rifles. The AR15 triggers are not compatible with the Sig MPX/MCX weapons or Pistol Caliber Carbine AR15/M4 variants. Using them in these platforms will void the warranty. PLATFORM: AR15/AR10 TYPE: 2 Stage 1st STAGE WEIGHT RANGE: 2.75 - 3 lbs. 2nd STAGE WEIGHT RANGE: 1.5 - 1.75 lbs. TOTAL PULL WEIGHT RANGE: 4.25 - 4.75 lbs. ADJUSTABLE: No TRIGGER BOW TYPE: Lightning Bow PIN SIZE: Mil-Spec MPN: 05-959 UPC: 810081131339