only gives you five more rounds. Provides a heck of a lot more surface area to grip.
https://www.tandemkross.com/-Wingman-5-Magazine-Bumper-for-Walther-P22-2-PACK_p_231.html
https://www.tandemkross.com/-Wingman-5-Magazine-Bumper-for-Walther-P22-2-PACK_p_231.html