I recently bought a Model 577 for my Browning 1911 .380 with a 3 5/8 barrel. Paul’s craftsmanship is second to none. It fits like a glove because they are molded for the EXACT model. IWB holster, and zero concerns about the firearm becoming loose from the holster due to the perfect fit. Very comfortable as well, there is no part of the firearm touching my body in any way. This will last a lifetime. Thank you Paul.