Airsoft Newb

Just had one of these from eBay. They’re pretty good actually. Nice and clear. http://rover.ebay.com/rover/1/710-53481-19255-0/1?icep_ff3=2&pub=5575378759&campid=5338273189&customid=&icep_item=324209639247&ipn=psmain&icep_vectorid=229508&kwid=902099&mtid=824&kw=lg&toolid=11111 Sorry, thought a picture might come up. It’s a Trijicon clone