The DeAR22 platform just got a serious upgrade with this rear-charging upper designed specifically for RTB’s AR22 rear charging handle, and it’s more than just a cosmetic tweak—it’s a practical evolution that solves real-world handling issues for rimfire builders. By shifting the charging handle to the rear, users gain improved ergonomics and faster manipulation, especially when running optics or suppressors that can obstruct traditional side chargers. Pairing it with a lowered shelf lower like the Defiance Gen 2 or the DeAR FCG Lower Flat Top ensures reliable feeding and extraction, which is critical in a .22LR conversion where tolerances can make or break function. This isn’t just about convenience; it’s about refining the AR-15 platform’s adaptability for rimfire training, plinking, or even small-game hunting without sacrificing the muscle memory shooters develop on centerfire rifles.

For the 2A community, this kind of modular innovation underscores why the AR ecosystem remains dominant: it rewards creativity and aftermarket ingenuity. A rear-charging upper for an AR22 isn’t just a niche accessory—it’s a statement that even “entry-level” or training rifles deserve the same attention to detail as duty-grade firearms. It also highlights how small design choices, like a lowered shelf or compatibility with existing lowers, can dramatically expand a platform’s usability. In an era where regulatory pressure often targets configurations rather than function, products like this reinforce the principle that lawful gun owners should have the freedom to customize their firearms for safety, efficiency, and enjoyment. The DeAR22 rear-charging upper isn’t just another part—it’s proof that the rimfire AR world is maturing, and builders are paying attention.