BudsGunShop.com - Glock 26.

yes it will work just fine

Yes. 100 percent functionality. It is called a fun stick...hahahhah.

Yes Efrain, the smaller Glock pistols can use any larger magazine of the same caliber. The reverse is not true as the larger Glock pistols cannot use the smaller magazines of the same caliber as they would be "too short".

Yes.

Efrain, Absolutely. All Glock double stack magazines will fit all caliber specific Glock firearms. Will fit your G26. If you put a 9mm conversion barrel in your 40 S&W Glocks this will work for magazine conversion also