The ERA-TAC Real Drop-In Single-Stage Trigger delivers a premium, German-engineered fire control upgrade optimized for crisp mechanical performance and absolute installation simplicity. Shaking up traditional cassette layouts, this specialized unit can be dropped directly into the lower receiver without needing to fully disassemble internal weapon safety components. It is built from high-strength aircraft aluminum enclosing precisely polished, wire-EDM hardened steel parts to eliminate hammer play and deliver a completely dry, creep-free break. The defining innovation of this straight-blade variant is an on-the-fly adjustable tension dial adjusted with an included Torx T5 tool; a simple quarter-turn lets shooters switch instantly between a lightweight match setting of >2.2 lbs (>1000g) and a duty-ready weight of >3.3 lbs (>1500g). Engineered with a remarkably short pull travel and rapid tactile reset for blistering split times, this robust ERA-TAC upgrade features a smart loading-state mechanical safety constraint that blocks external safety manipulation when the hammer is forward. ERA-TAC Straight Blade Single-Stage Trigger for AR 15/10 T0560-0102