A G43 stainless steel barrel is a corrosion-resistant 9mm barrel for the Glock 43 subcompact. Often made to match-grade tolerances with polished feed ramps for improved reliability and accuracy. Available in standard or threaded variants (typically 1/2×28) for use with compensators or suppressors (via piston/booster). It works with G43 slides, frames, recoil spring assemblies, sights, and magazines, and is compatible with most OEM and aftermarket components for concealed-carry, defense, or competition-focused upgrades.
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