Gregor Brown, Nathan McBeth and Max Williamson each see their form across the 2023/24 season rewarded with a first senior Scotland call-up, having all previously been invited to train with Townsend's setup over the campaign to date.
The trio have made a total of 46 appearances between them across the season so far, each playing a key role in Glasgow's progression to the final four of the BKT United Rugby Championship.
Incoming signings Adam Hastings and Rory Sutherland are also included amongst the 36-strong playing group in addition to the 15 current Warriors that will assemble at Oriam in the coming weeks, giving the Warrior Nation an opportunity to view the new additions in action prior to their arrival at Scotstoun.
Huw Jones is the most-capped Warrior selected amongst the travelling party, the centre set to win his 50th cap for his country if he features in two of the Test matches on tour.
Jamie Dobie and Murphy Walker are both in contention to win their first caps since last summer, the pair having won their second and third caps respectively in the Rugby World Cup warm-up win over Italy at Scottish Gas Murrayfield.
Stafford McDowall is another looking to add to his single-figure caps tally to date, the centre coming off an outstanding 2023/24 in Glasgow colours that saw the centre voted as the Deholm Energy Services Players' Player of the Season.
Sione Tuipulotu returns to the Scotland squad after a barnstorming run-in for the Warriors, having been a mainstay in the Glasgow midfield since recovering from a knee injury sustained in the Guinness Six Nations.
Rory Darge and George Horne will board the plane to the Americas in fine form, having taken home Player of the Match honours in consecutive Glasgow victories against Zebre Parma and the DHL Stormers in the past fortnight.
Squad ever-presents Matt Fagerson and Scott Cummings are once again given the nod by Gregor Townsend and his coaching team, the pair having featured in every Scotland Test match in 2024 to date.
Ross Thompson and Kyle Rowe also receive call-ups for the upcoming quartet of Tests, having both featured on Scotland's last tour to the Americas in the summer of 2022.
Club captain Kyle Steyn completes the Glasgow contingent, the winger looking to add to his impressive strike rate of 11 tries in 19 Scotland appearances to date.
In addition, Ben Afshar and incoming signing Fin Richardson will also join the tour for the final two matches against Chile and Uruguay, the pair having been selected as development players by Townsend and his coaching team.
Scotland Summer Tour Squad
Forwards
Ewan Ashman (Edinburgh Rugby) 17 caps
Josh Bayliss (Bath Rugby) 5 caps
Gregor Brown (Glasgow Warriors) uncapped
Alex Craig (Scarlets) 2 caps
Luke Crosbie (Edinburgh Rugby) 8 caps
Scott Cummings (Glasgow Warriors) 38 caps
Rory Darge (Glasgow Warriors) 19 caps
Matt Fagerson (Glasgow Warriors) 44 caps
Patrick Harrison (Edinburgh Rugby) uncapped
Will Hurd (Leicester Tigers) uncapped
Ewan Johnson (Oyonnax Rugby) uncapped
Nathan McBeth (Glasgow Warriors) uncapped
Elliot Millar-Mills (Northampton Saints) 3 caps
Javan Sebastian (Edinburgh Rugby) 8 caps
Pierre Schoeman (Edinburgh Rugby) 31 caps
Robbie Smith (Northampton Saints) uncapped
Rory Sutherland (Oyonnax Rugby) 30 caps
Dylan Richardson (The Sharks) 1 cap
Jamie Ritchie (Edinburgh Rugby) 49 caps
Murphy Walker (Glasgow Warriors) 3 caps
Max Williamson (Glasgow Warriors) uncapped
Glen Young (Edinburgh Rugby) 3 caps
Backs
Matt Currie (Edinburgh Rugby) uncapped
Jamie Dobie (Glasgow Warriors) 2 caps
Adam Hastings (Gloucester Rugby) 26 caps
Ben Healy (Edinburgh Rugby) 5 caps
George Horne (Glasgow Warriors) 30 caps
Huw Jones (Glasgow Warriors) 48 caps
Stafford McDowall (Glasgow Warriors) 2 caps
Harry Paterson (Edinburgh Rugby) 1 cap
Arron Reed (Sale Sharks) uncapped
Kyle Rowe (Glasgow Warriors) 4 caps
Kyle Steyn (Glasgow Warriors) 19 caps
Ross Thompson (Glasgow Warriors) 3 caps
Sione Tuipulotu (Glasgow Warriors) 25 caps
Duhan van der Merwe (Edinburgh Rugby) 39 caps
Gus Warr (Sale Sharks) uncapped
Development players
During the last two weeks of the tour, three development players will join the squad as a learning opportunity and to bolster training. Tighthead prop Fin Richardson, who has signed for Glasgow Warriors next season, will be joined by his new teammate, scrum-half Ben Afshar. Edinburgh Rugby lock Rob Carmichael will also be added to the group for the final two weeks.
Fin Richardson (Exeter Chiefs) uncapped
Rob Carmichael (Edinburgh Rugby) uncapped
Ben Afshar (Glasgow Warriors) uncapped
All games will be shown live in the UK and Ireland, with broadcast details confirmed in due course by Scottish Rugby.
>strong>Scotland Summer Tour Fixture List
Saturday 6 July: Canada v Scotland, TD Place, Ottawa, kick-off: 10.00pm UK time, 5.00pm local time
Friday 12 July: USA v Scotland, Audi Field, Washington DC, kick-off: 11.30pm UK time, 6.30pm local time
Saturday 20 July: Chile v Scotland, Estadio Nacional, Santiago, kick-off: 8.00pm UK time. 3.00pm local time
Saturday 27 July: Uruguay v Scotland, Estadio Charrúa, Montevideo, kick-off: 8.00pm UK time, 4.00pm local time