MB-550-RC 4 coil with Rubber Jaws, has an outside jawspread of 5 1/2" and an inside jaw spread of 4 3/4". A Paws-I-Trip pan system and night latch dog have been installed. Pan tension on the 4 coiled version runs on average 3.1 pounds out of the box. Tested extensively over a six year period on coyote, bobcat, red fox, grey fox, and raccoon. SINGLE TRAP
We do not recommend using the 4 coiled version if grey fox is your target animal. The 550 is an excellent live market trap as well as the trap to use on a mixed species line. Small enough for fox and tough enough for the nastiest coyote.
All MB-550's now have hardened stainless steel dogs. Coyote Proof !