Super Dynamic Enhanced (SD-E) Trigger Description The Geissele Super Dynamic-Enhanced (SD-E) Trigger featuring an exclusive flat trigger bow, is a finely-tuned two stage trigger providing enhanced trigger control and weapon accuracy while maintaining the robustness and reliability of Geissele's combat-proven two-stage trigger. The SD-E is a flat bow version of the Super Semi-Automatic Enhanced (SSA-E), which features a classic M4 style curved trigger. Super Dynamic Enhanced (SD-E) Trigger Specification PLATFORM: AR15/AR10 TYPE: 2 Stage 1st STAGE WEIGHT RANGE: 2.0 - 2.5 lbs. 2nd STAGE WEIGHT RANGE: 0.9 - 1.3 lbs. TOTAL PULL WEIGHT RANGE: 2.9 - 3.8 lbs. ADJUSTABLE: No TRIGGER BOW TYPE: Flat RECOMMENDED USE: Target & Precision Shooting, Hunting PIN SIZE: Mil-Spec All weights are approximates. Super Dynamic Enhanced (SD-E) Trigger Notes Please note, Geissele's triggers are designed for mil-spec AR15/M4 carbine rifles. Geissele's 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. DOWNLOAD OWNER'S MANUAL