Adjustable 2.5 to 5.0-pound single-stage AR-15 trigger with Zero Creep, a flat lever, and 440C stainless internals.

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TriggerTech AR0-SBB-25-NNF Single Stage Flat Trigger for AR-15 - Precision Shooting Upgrade with Frictionless Release Technology
TriggerTech's Adaptable is the middle of its AR-15 line, between the fixed-weight Duty and the lighter competition Diamond. This single-stage version adjusts from 2.5 to 5.0 pounds, so one trigger can run light for bench and precision work and heavier for a hunting or general-purpose rifle.
TriggerTech's Zero Creep design breaks with no measurable creep, under 0.015 inch of overtravel, and a reset under 0.030 inch. The key components are hardened 440C stainless steel in an anodized 7075 aluminum housing, and the engagement surfaces do not depend on coatings or polishing, so the pull stays consistent over a long service life. It installs on the lower's standard 0.154-inch mil-spec trigger and hammer pins, which are not included. This is the flat-lever version; TriggerTech also sells it with a pro curved lever.

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Add the TriggerTech AR-15 Adaptable Single-Stage Trigger (Flat) to your build and see how it enhances your platform.