inchGo big or go home, inch we always say. Well, it doesn't get much bigger than this ProMag Drum Mag for the SIG SAUER P365 & P365XL. Needless to say, you won't spend much time reloading at the range. Fits the SIG SAUER P365 & P365XL handguns chambered in 9mm Extended 50-rd. Drum Magazine Durable polymer upper with full-length steel internal insert Injection-molded polymer follower Stainless steel spring Made in USA Order today!