One of the bigger items not talked about is service. Bering Optics provides service on any of their thermals during and after warranty. Since the Rattlers and Taipan are imported in from China, when I had checked there was no service option only replacement while under warranty. This may have changed but Night Goggles had me check this when we were considering carrying AGM. The Hogsters are assembled, supported and serviced in the US. If you have any questions on the Bering Optics thermals, send me a PM and we can chat on the phone as I have used all of them. As already mentioned, Bering Optics has a 4-year transferrable warranty.