They are in fact legal! They are much harder to pull off in No Gi than in Gi, which means harder in MMA. Plus wrist locks often require a two on one . Meaning you have to use both of your hands to pin one of his. In MMA this leaves the guy getting wrist locked with one hand to punch you . So there it is , it usually requires a two one one . - Lotus Club Purple Belt
Wow hombre you're like 3 years in the past, much respect. Sure, I don't disagree, my point was that if you're fighting someone who is actively fighting you then I doubt you're going to get any wrist work in, especially if there are gloves involved which tape the wrists.You’re right, but wrist locks are effective when they come by surprise. And the wrist breaks easily so the one wrist locking needs to be responsible.