In Mortal Kombat (2011), he wields the Nightsticks during gameplay and uses it with combos, special moves and his X-Ray Move. However, they were always called Batons rather than Nightsticks in this game.
In Mortal Kombat X, Cassie Cage wields an extendable nightstick, using it in many of her kombos, her X-Ray and her "Selfie" fatality.
Stryker with his Nightstick
Stryker's Nightsticks used as tonfas in MK: Armageddon
Stryker's versus screen in MK:A
Stryker's crossed batons worn on his back
Stryker as he prepares to smash their head with batons