OEM performance and price.
Sometimes, it's best to stick with factory-spec components -- like this DLC-coated, G21-compatible barrel -- to guarantee reliable cycling and good accuracy with any .45 ACP load.
Barrel Compatibility
This barrel fits all Gen 1 to Gen 4 GLOCK® 21 pistols.
Barrel Features
- Size: .45 ACP
- Barrel Length: 4.5"
- Twist Rate: 1:16
- Material: 4150 Gun Steel
- Finish: Black Diamond-Like Carbon (DLC)
Installing Your Barrel
Need help with installing your barrel? Here's How to Assemble Your Slide (Instructions).
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Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
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- Model:
- G21
- Size:
- Full
- Barrel Finish:
- Nitride
