Radian Weapons AR15 Vertex Trigger CBX Curved 3.5-4lb Black. The trigger bow is positioned forward of the traditional bow location enhancing the shooters ability to make a straight-back trigger break and reducing potential for ''left and down'' or ''right and down'' trigger pull. The bow features a distinct angular position facilitating repeatable positioning for your trigger finger. The net result of the design is a more consistent accurate and more comfortable shooting experience. The VERTEX Trigger is available in single and two stage configurations and features a true zero-creep break extremely short overtravel and a short tactile reset. It is compatible with the AR15 platform with a design that prevents pin walkout even when using standard hammer and trigger pins. Its use is appropriate for various applications including long-range competition or combat. Specifications for Radian Weapons AR15 Vertex Trigger CBX: Manufacturer: Radian Weapons Color: Black Trigger Material: Steel Aluminum Trigger Pull Weight: 3.5 - 4 lb Hand: Ambidextrous Gun Make: AR Platform Gun Model: AR-15 Package Contents: Radian Weapons AR15 Vertex Trigger CBX What firearm models does the manufacturer say Radian Weapons AR15 Vertex Trigger CBX is compatible with? The manufacturer says that Radian Weapons AR15 Vertex Trigger CBX is compatible with AR-15Radian Weapons R0927: AR15 Vertex Trigger CBX Curved 3.5-4lb Black