Sword Art Online. Volume 06. Phantom Bullet

To uncover the identity of the mysterious player named Death Gun and to find out if he can actually kill people while inside the game, Kirito dives into the VRMMO "Gun Gale Online". Assuming that Death Gun will participate in the "Bullet of Gold" tournament, he does the same. Together with the sniper girl Sinon, he must unravel the sinister mystery of the virtual world and confront his past.