Blackout Defense Zero AR-15 Trigger Flat 4.5lb Pull Weight Black

AR-15 ZERO(TM) TRIGGER - FLATThe short 2mm reset makes the Zero trigger one of the fastest on the market. The reset is also positive, which facilitates even faster shooting during training or competition. The trigger, hammer, and disconnector are EDM cut and then polished with brass wire to a micron finish in all critical contact areas for a friction-less engagement. The pull-weight and disconnector set screws are also welded after loctite for safety and a lifetime of use.Zero(TM) AR-15 triggers are available in two pull weights: 3 lbs and 4.5 lbs. They are available in Black Nitride or Titanium Nitride (MULTiN). Black Nitride is a heat treatment process that enhances corrosion resistance, improves lubricity, and leaves a fine black finish on the surface of the metal.In short, all of the features of the Zero(TM) trigger are designed to offer a shooting experience that is exceptionally smooth, crisp, and fast.ATTENTION: THE AR-15 ZERO TRIGGERS ARE NOT COMPATIBLE WITH 9MM AR'S OR AR-10's.WE ALSO DO NOT RECOMMEND USING THIS TRIGGER WITH MODIFIED BOLT CARRIER GROUPS OR BUFFER SYSTEMS. YOU MAY DAMAGE YOUR TRIGGER. PLEASE USE ONLY WITH MIL-SPEC CARRIERS AND BUFFER SYSTEMS.*ANTI-WALK TRIGGER PINS ARE NOT INCLUDED BUT CAN BE PURCHASED HERE*0.1540 inch diameter trigger pins are required. Undersized and out-of-spec trigger pins will cause the trigger to malfunction.* Primary tension screw: Tighten to 8in-lbs (no Loctite)* Secondary tension screws: Tighten to 14in-lbs (add blue Loctite)