The FailZero trigger features EXO nickel boron coating for an ultra-slick pull, easy cleaning, and superior wear/corrosion resistance. Offered as mil-spec style or drop-in, it enhances consistency and reliability. Works with AR-15 mil-spec lower receivers (0.154″ pins), safety selector, hammer, disconnector, trigger/hammer springs, and pins; many versions also fit AR-10/.308 lowers that accept AR-15 pattern fire-control groups. Interfaces with the bolt carrier group and standard buffer system for dependable semi-auto operation.
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