I picked up the UPG47 grip and didn't like it. I couldn't get it quite right, preferred the Saw grip instead.
I used the Saigatech AK47 conversion (the bottom one in your picture). Everything went real smooth. I don't think the Saw one will work for a regular grip because of the extra material, but don't have that version to compare. I really like the Tromix DIY version as it looks more streamlined/cleaner.
I tried the Ace external adapter block before the conversion. It is nice to see how the pistol grip feels with the stock FCG and you don't need to cut the tang. The only things I di