American Tactical "Bull-Dog", 12 ga. semi-auto bullpup shotgun. Serial #12BD20-2911. Excellent condition. 18" barrel has an excellent bore. Black tactical finish on the barrel and upper is 98%+. Polymer bullpup lower is excellent. Adjustable cheek rest. Sight Mark red dot sight mounted on pic rail. Tactical flashlight. Comes with hard case, 3 mags, and three choke tubes-FULL,MOD,CL. Great home defense shotgun, bullpup design for close quarters. Gunrunner West item.