Our Match-Grade Barrel for the Glock® 21 is a premium barrel machined from hardened 416R stainless steel to precise dimensions, so it delivers a tight lockup that helps ensure superb accuracy. It's a drop-in fit to most guns, too. And the extra-hard Black Nitride finish resists surface wear and stops in its tracks whatever corrosion might try to challenge the stainless steel. This .45 ACP chambered barrel is button-rifled with standard, 1-10" right-hand, 6-groove rifling that is compatible with the non-jacketed bullets of inexpensive "practice" ammo. You can get your match barrel for Glock® 21 with either a Plain muzzle or Threaded (.578"-28 tpi) to enable installation of a compensator or sound suppressor. Both have an 11-degree target crown, and each is laser engraved with the chambering and the Glock® model it fits.

• 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

A Match-Grade Barrel for your Glock® 21 from Brownells is an excellent replacement for a shot-out factory barrel, and it's the ideal tube for a custom gun built on a Polymer80 PF45 frame!