An AR-15 pistol barrel is a compact barrel, typically 7″–10.5″ in length, designed for AR-15 pistols and short-barreled rifles (SBRs). It offers enhanced maneuverability for close-quarters use and is suitable for calibers like 5.56 NATO, .223, and 300 Blackout. The AR-15 pistol barrel works with AR-15 upper receivers, pistol-length gas systems, compatible gas blocks, gas tubes, handguards, bolt carrier groups, and lower receivers. It’s ideal for building or upgrading compact AR-15 pistols focused on home defense, tactical use, or range shooting.
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