Elftmann Tactical SE AR-15 Curved Adjustable Trigger Black Shoe Anodized Red. Extremely short takeup clean crisp break and very short positive reset. It has a updated look with brand features such as adjustable pull weight being one of them Specifications for Elftmann Tactical SE AR-15 Curved Adjustable Trigger: Manufacturer: Elftmann Tactical Trigger Shape: Curved Trigger Material: Aluminum Trigger Pull Weight: 2.75 - 4 lb Trigger Pin Size: Standard Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Fabric/Material: Alloy Steel Features of Elftmann Tactical SE AR-15 Curved Adjustable Trigger Fits any and all AR platforms Adjustable from 2 3/4lbs to 4lbs without removing from lower Patented Double-Double torsion hammer spring Short pull and reset allows for rapid follow up shots Made of lightweight aircraft-grade aluminum and hardened steel Adjustable aluminum trigger shoe Fits B&T Rifles and Tippmann Arms M4-22 Package Contents: Elftmann Tactical SE AR-15 Curved Adjustable Trigger What firearm models does the manufacturer say Elftmann Tactical SE AR-15 Curved Adjustable Trigger is compatible with? The manufacturer says that Elftmann Tactical SE AR-15 Curved Adjustable Trigger is compatible with AR-15Elftmann Tactical SEBC: SE AR-15 Curved Adjustable Trigger Black Shoe Anodized Red