Transform your Glock 17 Gen4 into an affordable .22 LR trainer with the Advantage Arms .22 Conversion Kit. Whether you're looking to stretch your range budget, introduce a new shooter to safe fundamentals, or refine your grip and trigger work without the recoil and cost of 9mm, this California-compliant conversion kit delivers serious value. The modular design locks directly onto your Gen4 frame, converting your defensive pistol into a cost-effective practice tool that keeps you sharp between duty loads.

Training new shooters—especially younger hands—becomes less intimidating and more effective when they start with .22 LR. The round's mild report and negligible recoil let flinch-prone shooters focus on stance, sight picture, and trigger control rather than managing 9mm performance. For seasoned shooters, it's a way to log high-round-count practice sessions without depleting your ammunition budget or your hearing. The MOD-CA series is engineered specifically for Glock 17 and 22 Gen4 pistols, ensuring reliable drop-in conversion and easy reversal when you need your duty config back.

This kit ships California-legal, with two 10-round magazines for extended training blocks and a range bag to keep everything organized. The upper includes a recessed optics cut, so you can mount compatible red dot sights to speed up your sight transitions and get real laser-focus on fundamentals. Installation requires no gunsmithing—just field-strip familiarity and a few minutes. Note that the red dot sight and pistol itself are not included.

Key Features

• Fits Glock 17 and 22 Gen4 pistols
• Converts your 9mm/.40 S&W pistol to affordable .22 LR practice
• Includes two 10-round magazines for high-volume range sessions
• Recessed optics cut supports a variety of red dot sight options
• Supplied with range bag for storage and transport
• California-compliant design
• Tool for developing muscle memory and training new shooters

Specifications

Caliber	.22 LR
Fits	Glock 17, 22 Gen4
Magazine Capacity	10 rounds (2 magazines included)
What's Included	Conversion upper, two 10-round magazines, range bag
Compliance	California Legal
Optics	Recessed cut for red dot sights (sight not included)

Frequently Asked Questions

What Glock models does this conversion kit fit?

The Advantage Arms MOD-CA series is designed for Glock 17 and 22 Gen4 pistols only. It will not fit Gen3 or Gen5 models, so verify your pistol's generation before ordering.

Can I use this kit to teach a beginner shooter?

Yes. The .22 LR cartridge produces minimal recoil and a softer report than centerfire rounds, making it an excellent platform for teaching safe handling, sight picture, and trigger control to new or young shooters before they move to defensive calibers.

What's included in the box?

The kit includes the .22 LR conversion upper, two 10-round magazines, and a range bag. The red dot sight and your Glock pistol are not included.

Will this kit work with a red dot sight?

Yes. The upper features a recessed optics cut that accommodates a variety of red dot sights, though the sight itself is sold separately.