Looking into an M16 style build, need brands

I have a post-ban (1994) style bushmaster A2 with-out the fun switch obviously. It has a 20" H-Bar ( Heavy Barrel). It is 1/9 twist and does not have the threaded type flash hider nor the bayonet lug. All of which can now be had. I have done some upgrades to it but like the old look. I bought this rifle when it wasnt cool to own an AR type rifle right before the ban ended. Accuracy is good off hand for .223. I zeroed it at 50yrd and can hold a 1.5" group with factory ammo on a good day (when it is available). Here is a pic for your reference