TriggerTech AR-10 Black Diamond Pro Features The TriggerTech AR-10 Black Diamond Pro uses Frictionless Release Technology to eliminate the contact surfaces that typically need polishing or lubrication in a conventional trigger. Because there are no sliding surfaces wearing against each other the trigger pull weight and feel stay consistent whether it has been fired a handful of times or many thousands. The two-stage design gives the shooter a defined take up of 0.035 before the break helping build a consistent repeatable stroke. A sub 0.015 overtravel and sub 0.030 reset keep the trigger tight and fast to reset for quick accurate follow up shots. Constructed with a 7075 aluminum housing and stainless internal components the Black Diamond Pro is built to hold up to heavy use on a duty or competition rifle. It is designed to fit mil-spec 0.154 pin holes which means it drops into an AR-308 pattern receiver without special fitting. Its Pro Curve trigger shoe shape gives the shooter a familiar ergonomic finger placement for a natural trigger press. The TriggerTech AR-10 Black Diamond Pro is suited to shooters looking to upgrade an AR-308 pattern rifle with a dependable long-lasting trigger. TriggerTech AR-10 Black Diamond Pro Specifications Manufacturer: TriggerTech Model: AR-10 Black Diamond Pro Type: Two-Stage Trigger Trigger Style: Pro Curve Take Up Distance: 0.035 Overtravel: Sub 0.015 Reset: Sub 0.030 Pin Size: Mil-Spec 0.154 Material: 7075 Aluminum with Stainless Internals Color: Black Compatible Hosts: AR-308 / AR-10 Available At: GrabAGun