Best thing if you’re not adding an aftermarket magwell! - C&H Precision Weapons Brass Glock Speed Feed Pro

The absolutely best Glock plug on the market! Funnels mags into the magwell while leaving room to strip a mag if you need! Great for USPSA Carry Optics or Production, or even for EDC if the ounces don’t bother you, though it really doesn’t feel all that heavier! Had Pearce Grip Plugs for years but those block too much of the magwell and don’t leave room to strip a mag. Ever so slightly balances out the top heaviness of an empty Glock. Should fit Gen 4 and Gen 5 17/34/47 etc or 19 depending on which of the two you get. The polymer version is also fantastic!