Description
Practice is where good shooting habits are built, and this Advantage Arms conversion kit makes stacking up reps a whole lot easier on your wallet. It swaps your Glock 26 or 27 over to .22 LR in about the time it takes to field strip and reassemble, no permanent changes to your pistol and no gunsmithing required. You keep the same frame, the same trigger feel, and the same manual of arms, so the muscle memory you build here carries straight back over to your carry setup.
What the Glock 26/27 .22 LR Kit Brings to the Table
The slide assembly rides on a 4-inch barrel and this MOD version ships optics-ready, so you can bolt on a red dot if that's your thing or run the irons straight out of the box. One of the features that sets Advantage Arms apart is the last-round lock open. The magazine and a heat-treated steel insert work together so the slide locks back on an empty mag, just like your centerfire Glock does. There's also an internal firing pin safety built in, keeping the kit true to how the original pistol behaves.
Getting the Most Out of Your Advantage Arms Conversion
Rimfire runs best when you feed it right, and this kit is no exception. High-velocity ammo is the way to go, and folks consistently point to CCI Mini-Mags (40-grain round nose) and Remington Golden Bullets as the most reliable performers. Steer clear of hyper-velocity loads like CCI Stingers. A light coat of oil on the slide rails before your first range trip goes a long way toward smooth cycling right out of the gate.
This one fits Glock 26 and 27 frames across Gen 1 through Gen 5, and it packs down into the included range bag with both magazines. Whether you're introducing a new shooter, drilling fundamentals without the recoil and expense, or just want a fun plinker that shares parts with a pistol you already own, it's a smart addition to the safe.
Key Specifications
- Manufacturer: Advantage Arms
- Manufacturer Part Number: AAC26-27G1-5MOD-CA
- UPC: 094308001081
- Product Type: Conversion Kit
- Caliber: .22 LR
- Fits: Glock 26/27 Gen 1-5
- Barrel Length: 4"
- Magazine Capacity: 10 Rounds
- Optics: Optics-Ready
- Sight Feature: Last-Round Lock Open
- Safety: Internal Firing Pin Safety
- Finish: Matte Black
- Magazines Included: 2
What’s Included
- .22 LR conversion slide assembly with 4" barrel
- Recoil spring assembly
- Two 10-round magazines
- Range bag
- Instruction card
Frequently Asked Questions
Which Glock pistols does this conversion kit fit?
This kit is built for the Glock 26 and Glock 27 and fits frames from Gen 1 all the way through Gen 5. It installs without any modification to your pistol, so you're just swapping the slide and barrel assembly onto your existing frame. Once it's on, you keep all your normal Glock controls.
What ammo works best in the Advantage Arms Glock 26/27 kit?
High-velocity .22 LR is the recommendation, and CCI Mini-Mags in the 40-grain round nose along with Remington Golden Bullets tend to be the most reliable choices. Avoid hyper-velocity loads like CCI Stingers, as the manufacturer advises against them. Rimfire can be picky by nature, so if one brand gives you trouble, it's usually worth trying another before blaming the kit.
Does the slide lock back on the last round like my regular Glock?
Yes. Advantage Arms uses a patented magazine design paired with a heat-treated steel insert so the slide locks open after the final round is fired. That last-round lock open is one of the features that makes this kit feel like your centerfire pistol, which is exactly what you want when you're training.
Is this kit optics-ready?
This MOD version ships optics-ready, so you can mount a red dot to match your carry or duty setup if that's how you shoot. If you prefer irons, you can run the sights right out of the box. It's a nice bit of flexibility for keeping your practice gun consistent with your primary.







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