Turn that old barrel into a protein feeder with Boss Buck's Protein lower unit. Our patented design is the best 4-way system on the market. The unit has 5" ports with 4" I.D. openings for a deer's muzzle. Accommodates the largest whitetail. We feel our unit is the most moisture resistant one on the market. Choose the system deer breeders and hunters alike choose. Choose Boss Buck's unique protein system.

Center connecting tube is 4" O.D.

Feed ports are 8" long.
Inside the 4-Way

Feed Flow Adjustment Instructions (PDF Format)

Warning: Remove protein head when not in use / empty. Residue from corn/feed causes squirrels to chew on the unit when it's empty.