Chris sent us this photo he took of Santa Clara PD officers on duty at the Super Bowl 50 last week. The officers are rocking M4-style AR-15 carbines, each customized with a variety of accessories, and Glock pistols.
The officer on the Left seems to be going mostly stock with the addition of a EOTech sight and what looks like a Surefire SOCOM II Suppressor (correct me if I am wrong in the comments). Officer’s center and right have done various customizations including going with VLTOR IMOD stocks and Magpul PMAGs. Officer right has gone a little further and added a Mission First beavertail grip and Magpul MOE hand guard.