Sniper Tools Design Company started in the year 2000, shortly after inventing and patenting our "Angle Cosine Indicator," (TM) which is used by professional rifle Shooter's for angle fire solutions. Our goal is simple. Build the Very Best Product that we can build and focus on the principles of trust, honor and integrity. "CTR" For years, Military and Federal Snipers used a protractor, string and paper-clip to achieve a solution for angle fire. Now, our solution of obtaining either cosine or angle has been implemented and is in wide use by militaries and now hunters, throughout the world. US Pat. 6,568,092 NSN: 1005 01 560 0130 Manufacturers Part No.: ACIMIL-A2 GSA: GS - 07F - 0259N CAGE: 3LQE0 DOD EMall Contract #: SPM7W107DE028 In addition, we now represent and sell other manufacturer's products, so please accept our invitation to browse our web-site.