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Introducing our Match-Grade Barrel for the Glock® 21 - an exceptional barrel constructed from hardened 416R stainless steel, accurately machined to guarantee a tight lockup for exceptional accuracy. It is a perfect drop-in fit for most guns. Moreover, the Black Nitride finish provides added durability, increasing resistance to surface damage and thwarting any threat of corrosion.

This .45 ACP chambered barrel is designed with standard, 1-10" right-hand, 6-groove rifling that is compatible with low-cost, non-jacketed "practice" rounds. The Match-Grade Barrel for Glock® 21 can be purchased with either a Plain muzzle or Threaded (.578"-28 tpi) to enable installation of a compensator or sound suppressor. Both barrel options have an 11-degree target crown and are laser engraved with the chambering and the Glock® model it fits.

Features:
- Fits Glock® 21
- Hardened 416R stainless steel
- Non-reflective Black Nitride anti-corrosion finish
- Chambered in .45 ACP
- Button-rifled, 6-grooves, 1-10" twist
- Available with .578"-28 tpi threaded muzzle

If you are seeking a replacement for your worn-out factory barrel, or building a custom gun on a Polymer80 PF45 frame, the Match-Grade Barrel for your Glock® 21 from Brownells is a top-notch choice!