Intended Use Close quarter engagement, harsh environments operations, law enforcement,military, 3 Gun, varmint hunting. Trigger Control Details Trigger Lever Type: Traditional Curved or Flat Straight Trigger Action: Single-Stage or Two-Stage Zero Creep(TM): 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. Full Description 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. The installation guide is directed to experienced professional gunsmiths who understand the workings of their AR rifle and know how to fully detail strip the lower receiver. If you do not have these skills, we strongly suggest you retain the services of a competent professional gunsmith to install your trigger, and perform all important safety checks.