Last I heard, GG and Tactical Tailor had a business relationship. This is NOT to say the products are identical, nor the warranty/price.
An item that GG offers that appears to be identical to a TT item might, or might not, have some features incorporated in the TT item modified or deleted in the GG item. This whole arrangement is similar to London Bridge Trading Co (LBT) and their "bargain" line, LBX. Whether or not this a concern is up to the buyer. Investigate carefully. GG items may, or may not, be Berry-compliant, whereas the items from TT are, unless specifically disclaimed. Warranties differ, naturally, as do prices. Same thing with the LBT/LBX gear.
I have a number of GG items, and find no fault with them. I have a number of LBX items, and have found no fault with them, either. Final finishing work is better on TT and LBT items, but that is to be expected given the price differential, and easily remedied with a bic lighter and a little time/effort.
YMMV.