SR-30 Knights Armament 300 blackout rifle - Shot Show 2013 Subscribe to for more videos: .\r<br>\r<br>Knights Armament Company shows off a good pile of new items for 2013 : 300 blackout rifle builds, key mod rails, new AR accessories, and more .\r<br>\r<br>Jack Leuba from Knights Armament talks about the 300 Black Out SR30, the M110 K1 and the Master Key!! See more from Knights Armament at: .\r<br>\r<br>\r<br>\r<br>Complete coverage of booths as well as slow motion footage from Shot Show 2013.
