Featuring Frictionless Release Technology, this drop-in AR trigger has a short, two-stage action, designed to feel like a 1911 trigger, that provides a true zero-creep break, extremely short overtravel, a sub 0.030in tactical reset and offers outstanding reliability, even in the harshest environments. Utilizing CLKR Technology, the pull weight is quickly and confidently be adjusted in 2oz increments from a set screw with the trigger installed. Due to there being truly zero creep, most shooters report the pull weights feeling approx. 0.5lbs lighter than a friction based trigger of the same measured pull weight. This trigger bears the adaptable name because changing its pull weight does not affect hammer force so you get dependable primer strikes at every weight. Frictionless Release Technology, along with hardened 440C stainless steel internal components ensure corrosion resistance and an extended service life. As Frictionless Release Technology does not rely on coating, polishing or lubricating the key engagement surfaces, trigger pulls will be more consistent from shot to shot and after thousands of shots than you ever thought possible. 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. Specifications for Triggertech AR-15 Diamond Trigger: Manufacturer: Triggertech Color: Black Trigger Material: 7075-T6 Aluminum Trigger Pull Weight: 1.5 - 4 lb Trigger Pin Size: Mil-Spec Hand: Ambidextrous Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Finish: PVD Hammer: Full Size Hammer Features of Triggertech AR-15 Diamond Trigger Trigger Action: Short Two Stage Action, designed to feel like a 1911 FRT: Yes TKR Technology: Yes CLKR Technology: Yes FLTWR Technology: Yes Creep: 0.000in Overtravel: less than 0.015in Reset: less than 0.030in Reset Feel: Tactile mid force Hammer Strike Force: Full Pin Size: Standard Mil-Spec Pin (0.154in) Satisfaction Guarantee : 30 days Warranty: Product lifetime Weapon Platform: AR15 (and pump action AR) Package Contents: Triggertech AR-15 Diamond Trigger Installation Tools Instructions Book TriggerTech Patch