This is a Galco Belt Holster known as the DAO (FOR LONG BARRELS), model DAO172.
Galco International" LTD was founded by Richard N. Gallagher in 1969 as a small family business in Chicago" Illinois. Then known as The Famous Jackass Leather Company" the name took its inspiration from Rick's stubborn adherence to the highest standards of quality. Jackass" as it was commonly called" was originally a custom leather shop and showroom displaying every imaginable leather product. From sheepskin jackets to handbags" sandals to hats" and wallets to horsehide holsters" everything was made on site.
Features:
Made from quality materials such as horsehide, premium steerhide, premium cowhide, Kydex
Holsters are available for many gun models from many different manufacturers