Advantage Arms .22LR Conversion Kit for Glock 20/21/20SF/21SF - 4.6" BarrelAdvantage Arms$273.53
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Advantage Arms
The Advantage Arms Conversion Kit for Glock 19X/45 transforms your centerfire pistol into a rimfire trainer, letting you shoot .22 LR without the recoil, noise, or expense of 9mm or .40 S&W. Whether you're logging rounds downrange on a budget, introducing a new shooter to the fundamentals, or running your pistol suppressed for quiet practice, this kit swaps the caliber while keeping your familiar grip and controls. The MOD series is engineered specifically for the Glock 19X and G45 platform, and it ships with two 15-round magazines, a 4.5-inch threaded barrel ready for a can, and a recessed mounting pattern for red dot optics.
Shooting .22 LR through a conversion kit is one of the cheapest ways to log trigger time and refine your accuracy without fatigue—ideal for training, skill retention, or simply having fun. Many shooters use this kit to test suppressor performance; the recommended suppressors are the Rugged Oculus and SilencerCo Warlock II Max. The threaded barrel is already set up for direct suppressor mounting, so you can pair this with your favorite .22 can if you have one.
This is a pure conversion: you're swapping the upper assembly and magazine well while keeping your original Glock 19X or G45 as the lower receiver. Aftermarket sights may require minor fitting with a set screw. The kit weighs 6.5 ounces and comes ready to shoot out of the box—just add your red dot, ammo, and mags.
| Caliber | .22 LR |
| Fits | Glock 19X, G45 |
| Barrel Length | 4.5 inches |
| Barrel Threading | Threaded for suppressors |
| Magazines Included | Two 15-round mags |
| Weight | 6.5 ounces |
| Optics Mount | Recessed cut for red dot compatibility |
| Finish | Black |
Yes—this kit is designed specifically for the Glock 19X and G45 platforms. It is not compatible with other Glock models.
Absolutely. The barrel is threaded and ready for .22 LR suppressors. Advantage Arms recommends the Rugged Oculus and SilencerCo Warlock II Max.
The kit includes a 4.5-inch threaded barrel, two 15-round magazines, a range bag, and a recessed red dot mount. Red dot sights and your original Glock are not included.
Depending on your aftermarket sight setup, you may need to use a set screw to fit them properly. Original Glock sights should work without issue.
Advantage Arms
The Advantage Arms Conversion Kit for Glock 19X/45 transforms your centerfire pistol into a rimfire trainer, letting you shoot .22 LR without the recoil, noise, or expense of 9mm or .40 S&W. Whether you're logging rounds downrange on a budget, introducing a new shooter to the fundamentals, or running your pistol suppressed for quiet practice, this kit swaps the caliber while keeping your familiar grip and controls. The MOD series is engineered specifically for the Glock 19X and G45 platform, and it ships with two 15-round magazines, a 4.5-inch threaded barrel ready for a can, and a recessed mounting pattern for red dot optics.
Shooting .22 LR through a conversion kit is one of the cheapest ways to log trigger time and refine your accuracy without fatigue—ideal for training, skill retention, or simply having fun. Many shooters use this kit to test suppressor performance; the recommended suppressors are the Rugged Oculus and SilencerCo Warlock II Max. The threaded barrel is already set up for direct suppressor mounting, so you can pair this with your favorite .22 can if you have one.
This is a pure conversion: you're swapping the upper assembly and magazine well while keeping your original Glock 19X or G45 as the lower receiver. Aftermarket sights may require minor fitting with a set screw. The kit weighs 6.5 ounces and comes ready to shoot out of the box—just add your red dot, ammo, and mags.
| Caliber | .22 LR |
| Fits | Glock 19X, G45 |
| Barrel Length | 4.5 inches |
| Barrel Threading | Threaded for suppressors |
| Magazines Included | Two 15-round mags |
| Weight | 6.5 ounces |
| Optics Mount | Recessed cut for red dot compatibility |
| Finish | Black |
Yes—this kit is designed specifically for the Glock 19X and G45 platforms. It is not compatible with other Glock models.
Absolutely. The barrel is threaded and ready for .22 LR suppressors. Advantage Arms recommends the Rugged Oculus and SilencerCo Warlock II Max.
The kit includes a 4.5-inch threaded barrel, two 15-round magazines, a range bag, and a recessed red dot mount. Red dot sights and your original Glock are not included.
Depending on your aftermarket sight setup, you may need to use a set screw to fit them properly. Original Glock sights should work without issue.