Classic Firearms $14.99 for a milspec stock, buffer, buffer tube, spring, plate and nut. Undoubtedly cheapo parts but should be fine for a budget build. I'm not buying on so I didn't check shipping cost.
Mil-Spec 6 Position Stock Set, Buffer Tube, Spring, Buffer,Plate Nut .223 Carbine Rifle Kit - ST003M+ST007M
Mil-Spec 6 Position Stock Set, Buffer Tube, Spring, Buffer,Plate Nut .223 Carbine Rifle Kit - ST003M+ST007M