I was there on a weekday looking for a dive, and McCarthy's definitely filled the requirements. The crowd seemed a little shady, but they all kept to their own group of people. I was glad to find a place with pool tables, multiple dart boards, and a decent jukebox... Oh, and they also serve reasonably priced beer; not sure about the mixer prices tho. They have a nice "tiki" bar out back as well which could use some work. Overall tho, it's just a run down bar to go and kick it.
Review Source:The bartender chicks are terrible, minus one of them. This hole in the wall is now charging $2 for any purchase over $10 when someone uses debit/credit  Also did I mention the service is terrible? You'll be disappointed - don't go. They recently just fired and 86'd their only nice aspect ( a nice couple with karaoke business) what Dbags! The bar is poorly lit - the bartenders aren't really bartenders at all. they're slow, lousy company and well...bullies. Â
Can't wait for you to go out of business!!
Great laid back and friendly place to hang with friends or take your sweetheart to check out some cool live music. Â Good location in old town Longmont. Â Unpretentious. Â Good parking. Â Pool tables. Â Nice old bar. Â Reasonable drink prices. The West lives on in unique, honest places like McCarthy's. Â Decent places to grab a bite nearby.
Review Source:Best dive bar in Longmont. Hands down. I agree with Darryn above.
Great place. You can walk up to 99% of the patrons and start a conversation. Bartenders are 8/10 on the friendly scale, and a 10/10 on the service scale, as long as you tip.
Included:
-Karaoke nights on Tuesdays. Very fun!!
Contests, prizes, and even if they laugh at you you get a congrats and a pat on the back and high fives all around.
-Bowling game(2011)
-5+ dart boards (with league nights)
-All the time: 50C Hot dogs (Free on mondays as of 10/2010)
-Bar menu (fryer)
-Pool tables
-Internet Jukebox
-$1 PBR cans
-Ladys nights on wednesdays
-Outdoor heated/covered area
-banquet room
-Holiday specials (potlucks, etc)
All they are missing is a sunday morning sidewalk special!
To all my frrrrriiieends, go to Mccarthy's!
*Edit- The tenders are certainly fair-weather(tipper) friends. I always tipped $1 per drink order, usually more, but one day I had nothing to tip and even apologized. The tender got nasty with me and I told her I didn't appreciate her attitude. Basically, I'm never going back to this place, thats no way to treat a customer.