BOLO Report ran an article today on the Specialized Tactical Systems TiTan rifle, if you're interested:
"...[STS builss] rifles (theTiTan) for a number of high end customers, including Chris Kyle, Craft International and tactical units like St. Louis Police SWAT. There are several different models of TiTan, in 5.56mm, 7.62mm and 300 Blackout. From the TiTan 300, in 300AAC, which is designed to run suppressed (and quietly enough to engage without hearing protection)to the TiTan E, the shortest weapon offered by STS, used by USBP and Secret Service...."
Read the whole article here: http://boloreport.com/the-sts-titan-2