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The Tapco TAP22017 is a caliber conversion barrel that lets you shoot 9mm Luger out of your .40 S&W Glock 22. It fits Gen 3 and Gen 4 models, and the appeal is pretty simple: 9mm ammo is cheaper and lighter on recoil, so a barrel swap means more trigger time at the range without buying a second pistol. It drops right in with no gunsmithing and no other parts to change out.
The .40 caliber Glock 22 and the 9mm Glock 17 share the same frame and slide dimensions, which is what makes this conversion work. Because the barrel is bored for the smaller 9mm round while keeping the .40-size outer profile, you get a slightly thicker barrel wall, and plenty of folks find their conversion setup shoots tight, consistent groups. The gun's existing recoil assembly handles 9mm just fine, so there is no spring swap needed to get up and running.
Here is the one thing to know before your first range trip: run Glock 17 magazines. The 9mm mags feed the round correctly and keep things reliable. Some .40 mags will technically cycle 9mm, but they are hit or miss, so save yourself the headache and grab a couple 9mm mags. Stick with quality 124 or 147 grain ammo and this setup tends to run like a Glock should.
This barrel is machined from stainless steel and treated with a black nitride finish. That process hardens the surface for better wear and corrosion resistance, and it leaves behind a slick, low-friction bore that fouls less and wipes clean with just a few patches. A quick wipe-down after a range session and letting it dry before storage is about all the upkeep it asks for.
No, this is a true drop-in barrel with no gunsmithing required. The Glock 22's recoil assembly works with the 9mm barrel, so there is no spring swap to worry about. The only thing you really need to add is a set of Glock 17 magazines to feed the 9mm rounds reliably.
Some .40 magazines will cycle 9mm, but feeding tends to be inconsistent. For dependable function you'll want to switch to Glock 17 9mm magazines. They feed the smaller round the way it's meant to, and they're inexpensive enough that it's worth picking up a couple.
Yes, the TAP22017 is designed to fit Glock 22 Gen 3 and Gen 4 models. It drops in without modification. If you're unsure which generation you have, the Gen 4 has interchangeable backstraps and more aggressive grip texturing than the Gen 3.
Conversion barrels have a well-earned reputation for shooting well, and many owners find theirs are among the most accurate setups they own. Because the 9mm bore sits inside a .40-size barrel body, the wall is a bit thicker, which some credit for the consistency. Pair it with quality 124 or 147 grain ammo for the best results.
| UPC | 810122800156 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | TAP22017 |
| Model |
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