Odin Works XMR 2 Extended Magazine release (black in color) - installed it and it wasn't ergonomic for me - $15
https://www.odinworks.com/XMR_GEN_II_p/acc-xmr-2.htm
Magpul Enhanced Magazine release - to me this felt a little better than the Odin but I decided to go back to original - $15
https://www.magpul.com/products/bad-lev ... olor=VO343
Magpul B.A.D. lever - installed it, but then reconsidered the wisdom of changing manual of arms after attending a carbine course - $20
https://www.magpul.com/products/bad-lev ... olor=VO343
Mil-spec trigger group (trigger, hammer, disconnector, trigger spring, hammer spring, disconnector spring, two pins) from a Ruger AR556 rifle- $20
Mil-spec trigger group (trigger, hammer, disconnector, trigger spring, hammer spring, disconnector spring, two pins) from a Palmetto State Armory rifle kit - $20
I am located in St. Paul near St. Thomas but work in downtown Minneapolis. Thanks for looking.