Would a mag well, or a replacement trigger (example, Apex FSS - link https://apextactical.com/store/product- ... pid54.html) put you out of Tac Limited? From the book:
6.7.1 - Internal modifications are allowed providing they do not alter the original factory configuration of the pistol.
Both of the upgrades are external, which the book doesn't address. One way to read the rule is that no external modifications are allowed in Tac Limited, but I've seen them in the division before.