Yes, this model does indeed have the piccatinny rail at the rear of the receiver. Price differences can occur due to stock, Prices paid by Bud's, promotional pricing, etc.

Hi and welcome. This model does have the Picatinny Rail at the rear of the receiver. The difference in cost id due to the number of each in stock. Buds prices are tied to stock level and same or similar higher stock items will be less, lower stock more. Cheers and stay safe!

Yes, this model has Picatinny rail for rear attachments, QD sling swivel, scope rail. Comes with one 5-round magazine, oil bottle, cleaning rod, cleaning kit.
Both items have the same MSRP. As for the price difference, it has nothing to do with the number of each in stock - "Our website updates every 20 minutes, 24/7, with our current inventory and replacement cost. We do not price our guns manually based on our cost in each, rather we use a live download from manufacturers and distributors to set our price based on our current replacement cost. As our cost changes, the corresponding website price of each make/model will change up/down accordingly. Although our profit margin remains unchanged, our advertised prices will change frequently, sometimes several times per day."