You can swap .357 and .40 barrels, because it is not considered to be going up. You can't convert a 9mm Glock to .40/.357, but you can swap .40/.357. I believe you can even use the same mags.
That's really cool, I didn't know it even worked with 9mm mags.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Glock Forum
1.8M posts
52.7K members
Since 2011
A forum community dedicated to glock owners and enthusiasts. Come join the discussion about optics, holsters, gunsmithing, styles, reviews, accessories, classifieds, and more!