Grey will step into the ring as a leading name on The Gathering XI bill to tackle a touring fighter from Spain.
The evening will be promoted by Portadown-based Mike Jefferson alongside Davy Boyd - with five fighters from the area in the spotlight across the codes of kickboxing and boxing.
Other highlights from the Saturday, May 28 event include Northern Ireland and All-Ireland honours within the 18-strong schedule.
Grey - the holder of Northern Ireland, British and Five Nations kickboxing prizes - is set to settle a cruiserweight belt across five rounds.
The KI discipline will feature Craigavon’s Patrick Doran against an opponent from Drogheda for the TFC Irish title.
Mark Murphy, a former motorcycling ace, will be competing for Northern Ireland honours in the middleweight division against a Cookstown kickboxer.
Sean McAtamney from Gilford - based in Portadown’s Enzo’s Gym - will tackle a rival from Lithuania for title success.
Simon Forde from Portadown, a former undefeated heavyweight kickboxing champion, will switch his focus to boxing. He is going to face a current heavyweight kickboxing champion from Londonderry.
Loughgall’s Steven Preston, a former karting champion, will change gears for a bout against Portadown-based Keith Ratcliffe in a charity match to raise funds for The Northern Ireland Children’s Hospice or Autism Awareness.
Steven Theed, Wayne Love, Sharon Rogers, Tandragee’s David Dickson, William Lamb from Gilford, Craigavon’s PJ McCormac, Portadown-based Rui Oliveria and Gilford’s Paedar McComiskey will also be on show alongside visiting competitors.
Doors will open at 6.30, with everyone welcome.