See the Wikipedia page concerning this cartridge: en:6.5 Grendel

Photo by Rob Berg, http://bergphoto.smugmug.com/photos/112606885-O.jpg Use granted external to Wikipedia with photo link to http://www.65grendel.com and acknowledgement "Photo by Rob Berg", within Wikipedia use is unlimited.

The knife is a Stek 10" blade Damascus by Craig Steketee and Son; The Scope is a Bushnell Elite 4200 Firefly 8-32x40; The Scope mount is a B-Square AR see-through mount; The large magazine is a HK 30 round 5.56 mag which will hold and reliably feed 20 Grendel rounds; (note the dedicated Grendel magazines are the same size and hold 26 rounds); The loose bullets are Barnes 120gr TSX and Sierra 120gr HPBT; The stock is a MagPul; The handguard is a Briley Carbon Fiber; The upper is a prototype by Competition Shooting Sports http://www.competitionshootingsports.com for the 20" Grendel Counter Sniper (GCS) (bolt and barrel for GCS build supplied by Alexander Arms); The lower is an Alexander Arms http://www.alexanderarms.com 6.5 Grendel lower receiver