|Effects||Give BALROG weapons|
|Source||Event, Family Achievement|
|Cost to buy|
|Date added|| South Korea|
12 September 2013
7 August 2014 (BLUE)
- South Korea: 12 September 2013.
- The BLUE version was released on 7 August 2014.
- Taiwan/Hong Kong: 8 October 2013.
- China/Japan: 10 October 2013.
- Indonesia: 15 January 2014.
- CSN:Z: 23 September 2014.
- Vietnam: 26 March 2015.
- In Taiwan/Hong Kong version, opening B-Box will not have any chances of receiving BALROG-IX since melee weapons are hardly given out.
- The "Random Weapon" line is not completely random, it depends on each region. For example, many players got Double-barreled shotgun, Dual Infinity and MG3, which are included in South Korea's B-Box.