The New York Times has a positive review. The Guardian gives it 4 out of 5 stars and describes it as a "twist on John Ford’s The Searchers". Variety describes it: "a gleefully grisly genre gazpacho that matches a rousing sense of Old West derring-do to a comic sensibility as dark as chewing tobacco —and at least as much of an acquired taste. But for those with a head for loopily discursive humor (not to mention a stomach for some inspired grotesquerie), S. Craig Zahler’s debut feature will come as a most violent delight."
Empire Online says, "A mash-up of The Searchers and Cannibal Ferox, this is a pretty strong prairie stew." Roger Ebert's site calls it "a surprisingly sturdy Western" and concludes, "[Director] Zahler and his talented cast are willing to take this journey deep into the heart of darkness, and it’s their commitment that makes the entire project more than skin-deep." Rotten Tomatoes has a critics rating of 90%.