That's good advice. I don't want to mess with a good thing. Gonna keep the stock choke. Thank you. Yesterday, I went to my local store to get help with removing the stock bolt to put on the Magpul SGA, and lo and behold, the store actually had a Nordic Components extension on the shelf. That was the final piece of my upgrades to the 1301. Until Aridus puts out a new round of RMR CROMs. LOL