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The AR-15 Single Stage Large-Pin Trigger from CMC Triggers is designed for Colt-made AR-15s produced between 1991 and 2009 that accept receiver pins with a diameter of 0.172 inches. This trigger features a smooth single-stage operation and is available with either a curved or flat trigger bow, enhancing your firearm's performance and making it easier to achieve precision shots.
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A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
A neutral explanation of how single-stage and two-stage AR-15 triggers differ in feel, control, and use cases, plus how pull weight and shoe shape affect ergonomics.
5 min read