Ask the Community

as there is no S&W model or UPC listed I suggest that you Contact Buds customer service (859) 368-0371 available 9AM to 9PM CST Monday through Friday or use the blue chat now button . We are not buds employees we are volunteers that answer questions and I can not give you a 100% accurate answer as we have no access to the buds database

Jim, this pistol has a barrel length of 4.25" or 10.8 cm Sir. Specific barrel lengths will have a set number of slots on the accessory rail is how to tell. -- https://www.smith-wesson.com/firearms/mp-40

Jim, 4 1/4" barrel on this pre owned firearm.