Posted by Yukon58 on 1st May possibly 2023 I chose to go with this 16” upper for my Colt reduce after the fiasco Together with the atf pistol brace ruling. I wasn’t about to fluff all over so I went all Colt and am happy I did. Old style OST https://laneixhra.theisblog.com/26801804/colt-10-5-upper-secrets