BudsGunShop.com - Type of wood?

Hardwood.
marlinfirearms.com/lever-action/model-336/model-336y

Hardwood finished stock. Typically birch.

this lever rifle has a Walnut finished, Cut Checkered Hardwood Stock. [Specifications and Features: - Marlin Model 336Y lever-action rifle - .30-30 Winchester caliber - 16.25" barrel - 1:10" twist - Micro-Groove rifling, 12 grooves - 5 round tubular magazine - Side ejection - Hammer block safety - Walnut finished, cut checkered hardwood stock - 12" Length of Pull - Mar-Shield finish - Blued steel barrel - Solid top receiver, highly polished deep blue finish - Ramp front sight with brass bead and Wide-Scan hood - Adjustable Semi Buckhorn folding rear sight - 33.25" overall length - Weighs 6.5 pounds].

hardwood nice piece

Donald, this lever rifle has a Walnut finished, Cut Checkered Hardwood Stock. [Specifications and Features: - Marlin Model 336Y lever-action rifle - .30-30 Winchester caliber - 16.25" barrel - 1:10" twist - Micro-Groove rifling, 12 grooves - 5 round tubular magazine - Side ejection - Hammer block safety - Walnut finished, cut checkered hardwood stock - 12" Length of Pull - Mar-Shield finish - Blued steel barrel - Solid top receiver, highly polished deep blue finish - Ramp front sight with brass bead and Wide-Scan hood - Adjustable Semi Buckhorn folding rear sight - 33.25" overall length - Weighs 6.5 pounds].