Glock Gen 1-4 Barrel Conversion Kits

Glock Gen 1-4 Barrel Conversion Kits for Glock 17, 19, & More

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Frequently Asked Questions



What is a Glock barrel conversion kit?

A barrel conversion kit lets you shoot a different caliber from your factory Glock by swapping out the barrel. NDZ offers drop-in conversion barrels (e.g., 9mm to .22) for Glock Gen 1–4 models, giving you greater versatility without buying another gun.

Do I need to change anything else besides the barrel?

Yes, you’ll also need matching-caliber magazines for proper feeding and reliability. In most cases the factory recoil spring will still function, but check individual product notes for any recommended spring changes.

Will this affect reliability?

Not when properly installed. Conversion barrels are precision-machined and tested for tight lock-up, consistent cycling, and dependable performance with factory ammo.