Concealment pocket: 9” L x 5.25” H: You should allow about a half inch clearance around the zippers. This means that if your gun is less than 8.5" long (end to end) and less than 5" tall, it should fit.
A Note About Included Holsters: The "universal" purse holsters that most purse manufacturers include with the bags are a place to start, just understand that they will not be a good fit for many guns, they are generally nylon or elastic so the gun won't "snap in". They have zero retention. ie. if you tip the holster upside down, the gun will slip out. We strongly recommend getting a kydex plastic purse holster that's molded for your specific gun model, with snap-in retention. You'll get several loose adhesive velcro sheets with it, so you can attach it however you prefer inside your bag. We have two styles available: Get it here!