Robert Lock better known as "Mann" to those that know him personally began creating calls out of a simple love for the outdoors and a passion for creating things. Growing up in a small town called Watson in Arkansas, just across the river from Stuttgart,  Robert grew up hunting the vast part of Southern Arkansas. From acres of woodlands up and down the Great River Road to vast rice, and corn fields, he has spent his whole life chasing everything that was in season. 

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From this passion for the outdoors, duck season became his favorite time of the year and duck calls became an obsession. Years between his childhood and adult life took Robert out of the fields but his desire to build and tinker got the best of him in 2013 when he bought his first lathe and set up in a shed behind his home. The rest is history, drawing from his distinct art background and education in drafting and design, Robert began to build what is now Hollow Wing LLC.  From the fine art of carved calls and show pieces to top tier acrylic and wooden calls, each one is his creation. Dedicated to customer satisfaction and quality, each call he builds is signed with his name and guaranteed for a lifetime.