The design of our new Duty Line was driven by feedback from military and law enforcement operators. Pull weight of 3.5 lbs Available with curved or flat trigger lever The AR Duty line is the latest in TriggerTech triggers that offers robust reliability without compromising performance. Inspired by active MIL / LE Operators these triggers offer a longer take up (on two-stages) and a more forceful reset. All pull weights and measurements are approximate. Trigger Control Details Trigger Lever Type: Traditional Curved or Flat Straight Trigger Action: Single-Stage or Two-Stage Zero Creep™: Yes TKR Technology: Yes CLKR Technology: Yes FLTWR Technology: Yes Creep: 0.000" Overtravel: 0.060" Reset: 0.070" Reset Feel: Tactile mid force Hammer Strike Force: Full Pin Size: Standard Mil-Spec Pin 0.154" (trigger pins not included) Satisfaction Guarantee: 30 days Warranty: Product lifetime Weapon Platforms: AR-15, AR-10, AR-9 Material Details Housing: EZAC Diecast Key Components: 440C Stainless Steel PVD Black – PVD stands for Physical Vapour Deposition. It is a hard and durable coating that is applied to external stainless components to give them a clean black color.