If you're shooting with a Squad Designated Marksman-type rifle such as mil-spec AR10/AR15/M4 carbine rifle, then the Geissele SSA-E X Lightning Bow Trigger is for you! The nano-coating enhances wear and corrosion resistance and keeps the trigger smooth and breaking clean even after heavy use with minimal lubrication. If you're looking for a new Rifle Triggers for your AR platform or M4 carbine rifle, then buy the he Geissele SSA-E X Lightning Bow Trigger. Specifications for Geissele SSA-E X w/ Lightning Bow Trigger: Manufacturer: Geissele Trigger Pull Weight: 2.9 - 3.8 lb Trigger Pin Size: Mil-Spec Gun Make: AR Platform Gun Model: AR-10, AR-15 Gun Type: Rifle Condition: New Country of Origin: USA Features of Geissele SSA-E X w/ Lightning Bow Trigger Our triggers are designed for mil-spec AR15/M4 carbine rifles Our 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 Please refer to our Super MCX SSA or Super MPX SSA if you are using these platforms Package Contents: Geissele SSA-E X w/ Lightning Bow Trigger