Luth-AR A1 Buttstock

Luth-AR builds this one as the A1 buttstock, model BS-A1, in black.

The A1 is one of the classic buttstock profiles, and shooters who go after that shape do it on purpose rather than living with whatever came on the rifle. What a buttstock changes is where the cheek and the shoulder land, and that drives how consistently the rifle comes up to the same place. Buttstocks are not universal, so confirm what your rifle takes before ordering.