I can understand your getting tired of the AR platform as it's bulky receiver design and plastic fantastic feel gets a bit old after a while (BTW, I have 3 ARs), but there are other options besides the AR for the wonderful .223/5.56 caliber. First, let me say that I own 8 leverguns; a Henry 22lr, 2ea Rossi M92 357mags, 2ea Ubertis, a '66 Yellowboy carbine and a '73 Special Sporting rifle both in 45 Colt, a Mossberg 464 30-30, a '49 Savage 99 in 300 Savage, and a '59 Winchester 88 in .308 so I feel I have the levergun spectrum covered very well. While I love my levers, especially my 357mags, I don't want to stop there enjoying long guns so I also have some M1 Garands, M1 Carbines, an M1A, and my suggestion to you, a new style 583 Series Ruger Mini-14. It's chambered in the same .223/5.56 caliber as your ARs but it's got the feel more closely akin to a good lever carbine as it's small, compact, and a ton of fun to shoot.