Viz Media has confirmed that they will be releasing One-Punch Man in a Blu-ray / DVD combo pack on April 25. The release will include all 12 episodes of the series as well as the OVA episodes.
Pre-orders are open for the #OnePunchMan Limited Edition Blu-ray/DVD! Order with @animetoday for an exclusive gift! https://t.co/xSDNdnfLF4 pic.twitter.com/C37vMtsrIP
— VIZ (@VIZMedia) February 17, 2017
Retail Price: $59.99
Store Price: $53.99
One-Punch Man contains episodes 1-12 plus 6 OVAs.
Special Features: Clean Opening & Endings, Trailers, and more.
Release Date: 4/25/2017
Publisher: VIZ
Media: Blu-ray
Spoken Language: English, Japanese
Subtitle Language: English
Genre: Action, Comedy
Themes: Battles, Powers
Age Rating: 13+
Run Time: 288
Release Date: 4/25/2017
Weight: 0.99

Viz Media also provided a trailer for the release of the series.
The hit Shonen Jump manga is now an anime!
http://www.viz.com/one-punch-man
Straight from the pages of SHONEN JUMP, comes a hero unlike any before!
Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore.
With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?
http://www.viz.com/opm
Source: Viz Media, Crunchyroll