Gabriel was among the reserves when Windies team landed in England but proved his fitness with impressive performances in the two inter-squad warm-up matches at the Emirates Old Trafford.
"I am delighted that we are able to add Shannon to the Test squad. He has shown that he is fit and ready, he will add experience, firepower and potency to the bowling unit," Roger Harper, Cricket West Indies selector said.
His career-best performance came two years ago at the at the Daren Sammy Cricket Ground in Saint Lucia when he took 8-62 against Sri Lanka to end with match figures of 13-121.
West Indies will travel from Manchester to Southampton on Friday as they continue preparations in a bid to retain the Wisden Trophy in the #RaiseTheBat Test Series.The first Test will be played at the Ageas Bowl, starting July 8.
Test Squad: Jason Holder (captain), Jermaine Blackwood, Nkrumah Bonner, Kraigg Brathwaite, Shamarh Brooks, John Campbell, Roston Chase, Rahkeem Cornwall, Shane Dowrich, Shannon Gabriel, Chemar Holder, Shai Hope, Alzarri Joseph, Raymon Reifer, Kemar Roach(UNI)