This guide details building a beginner-friendly 3-Gun competition AR-15 focused on reducing felt recoil and enhancing capability. It starts with the AT3 Flatline rifle and outlines upgrades to the bolt carrier group, buffer, and gas block for improved performance. Recommendations for optics, including a primary scope and a 45° offset red dot, are provided to cover various engagement distances. The build emphasizes reliability and ease of manipulation for new competitors.
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