To feed a blaster you need bullets, and In this instance we are doing so with two Journals plus a box of Sig V-Crown Functionality Ammunition. The All set journal is from your Glock manufacturing unit and has a Pearce Grip magazine extension. The second magazine is from Magpul and http://hdpopcorn17228.bloguetechno.com/john-wick-holster-Can-Be-Fun-For-Anyone-29942104