BudsGunShop.com - Pc9 carbine

Michael, yes Sir. This is a full size Ruger Security-9 magazine (blocked to only hold 10rds) and will fit the Pc9 Carbine no issue. You and yours stay safe Sir!

yes it will fit and work fine with the ruger magwell installed "Interchangeable magazine wells for use of common Ruger® and Glock® magazines. *******Ships with SR-Series/*****Security-9® pistol magazine well installed and an additional magazine well accepting Glock® magazines is included*. Ruger American® Pistol magazine wells are available at ShopRuger.com." https://ruger.com/products/pcCarbine/specSheets/19122.html

Yup!