Ep-11: AR-15 Triggers Down & Dirty: Anatomy, Functionality, Stages, Break, Reset, Creep... MORE.

Published on January 12, 2023
Duration: 17:00

This guide, based on instruction from AT3 Tactical, details the anatomy and functionality of AR-15 triggers. It breaks down the essential components, explains the differences between single-stage and two-stage designs, and outlines key performance metrics like pull weight, break, and reset. The information is presented to help users understand and evaluate their AR-15's fire control group.

Quick Summary

AR-15 triggers are complex fire control groups. Understand their anatomy, including the trigger, sear, and hammer. Differentiate between single-stage (one motion) and two-stage (two distinct movements) designs. Evaluate performance by pull weight, break quality, creep, overtravel, and reset. Trigger bow shape (curved vs. flat) is a matter of personal preference.

Chapters

  1. 00:00Introduction to AR-15 Triggers
  2. 01:31Anatomy of a Standard Trigger
  3. 04:10Single-Stage Triggers Explained
  4. 07:29Two-Stage Triggers Explained
  5. 09:44Trigger Performance Metrics (Creep, Pull, Break, Overtravel, Reset)
  6. 15:30Trigger Bows: Curved vs. Flat

Frequently Asked Questions

What are the essential parts of an AR-15 trigger assembly?

An AR-15 trigger assembly includes the trigger itself, trigger spring, sear (which engages the hammer), trigger bow, pin holes, disconnect recess, and the safety selector engagement point. The disconnector and hammer are also critical parts of the fire control group.

What is the difference between single-stage and two-stage AR-15 triggers?

Single-stage triggers require one continuous motion to release the hammer, common in mil-spec configurations. Two-stage triggers have a distinct first stage of travel before reaching a 'wall,' followed by a lighter, crisper break in the second stage, often preferred for precision.

How do I evaluate the performance of an AR-15 trigger?

Evaluate trigger performance by assessing takeup/creep, pull weight (typically 1.5-9 lbs), break quality (crispness), overtravel (rearward movement after break), and reset (forward travel to re-engage). A short, tactile reset is ideal for faster follow-up shots.

Which AR-15 trigger bow shape is better: curved or flat?

The choice between curved and flat-faced trigger bows is largely personal preference. Curved bows offer even pressure distribution, while flat-faced triggers can feel lighter due to leverage and provide more room, especially useful for shooters wearing gloves.

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