Geissele Hi-Speed National Match AR-15 Trigger Set Curved 4.5 lb Pull Black. These Rifle Triggers designed by Geissele contains the Service Spring Set that is approved for use in CMP sanctioned competitions by meeting the minimum trigger pull weight of 4.5 lbs. by putting 4lbs. on the first stage allowing a sharp break on the second stage. This Geissele Hi-Speed National Match AR-15 Trigger Set also contains the DMR Spring Set that has a higher second stage weight that is ideal of stressful situations where you need to make a vital decision whether to pull the trigger or not. Finally the Match Spring set is perfect for AR-15 Space guns that places more kinetic energy into the firing pin thus producing significantly more consistent primer ignition with each pull. Get three different sets with varying applications by picking up this Geissele Hi-Speed National Match Competition Trigger Set. Please note 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. Specifications for Geissele Hi-Speed National Match AR-15 Trigger Set: Manufacturer: Geissele Color: Black Trigger Shape: Curved Trigger Pull Weight: 4.5 lb Trigger Pin Size: Mil-Spec Hand: Ambidextrous Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Included Accessories: Standard Condition: New Type: 2 Stage Country of Origin: USA Features of Geissele AR-15 Hi-Speed National Match Trigger Set: The Geissele Service Spring Set: Approved trigger for use in CMP sanctioned competitions 5-Coil trigger spring which will give a nominal 4 lbs. on first stage This will allow a light second stage with an icicle-sharp break; The Geissele DMR Spring Set: Designed for tactical and military shooting Higher second stage weight helps in high-stress shooting situations; The Geissele Match Spring Set: Designed for NRA High Power Rifle competition with highly modified AR-15 Space guns Pull weight can be adjusted to low levels that enhance trigger control Full-power hammer spring which imparts more kinetic energy into the firing pin Package Contents: Geissele AR-15 Hi-Speed National Match Trigger Set What firearm models does the manufacturer say Geissele Hi-Speed National Match AR-15 Trigger Set is compatible with? The manufacturer suggests that Geissele Hi-Speed National Match AR-15 Trigger Set is compatible with AR-15Geissele 05-181: Hi-Speed National Match AR-15 Trigger Set Curved 4.5 lb Pull Black