Parts list links:

Optic Combo: https://ak4774.com/product/recon-optic-combo-pack/
M4 stock adapter: https://ak4774.com/product/ak-m4-stock-adapter/
Sling: https://ak4774.com/product/raptor-reflex-two-point-sling-mk3/
Safety Lever with Notch: https://ak4774.com/product/ak-master-mount-enhanced-safety-lever-w-notch/
Long Rail (handguard): https://ak4774.com/product/soviet-arms-sa-30u-sa-31-handguard-set/
buttstock: https://ak4774.com/product/b5-systems-precision-stock-long/