The NP50AM is the newer pin nailer that supports fasteners up to 2" long, and seems to be the upscale/professional version of the NP35A, which can only shoot 1-3/8".
Add to cart in order to see the two special offers activated: NT50AE2 18-gauge brad nailer and carrying bag.
The bag seems pointless, since both tools come with their own case.
The 18-gauge brad nailer hovers around $70, and reviewed at 4.3 stars on Amazon, with other glowing reviews on YouTube claiming it is the best in its class.
There are some other tools that will bundle the two special offers, but I only needed the micro pin nailer.