An AR-15 pistol build kit is a complete set of components for assembling an AR-15 pistol, typically including a short barrel (usually 7″–10.5″), upper receiver, hand guard, pistol length gas system, bolt carrier group, charging handle, lower parts kit, buffer tube, and pistol brace. The kit works with AR-15 lower receivers and standard AR-15 parts, making it ideal for compact, maneuverable builds suited for home defense, tactical use, and range shooting in a pistol configuration.
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