The RA-140 SST is a high-performing, cost-effective upgrade to replace mil-spec triggers. It is CNC machined from high-grade, heat-treated tool steel and aluminum. Included are anti-walk trigger pins.
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Sig Sauer 8900696 Tread M400 Trigger Kit Two Stage Flat Trigger with 5 lbs Draw Weight for AR 15 M4 Sig M400 Sig MCX Sig 516
$96.00
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