This is the improved version of pistol FN submitted for MHS trial. The internals are very similar to FNS.
http://www.thefirearmblog.com/blog/2017/04/17/new-fn-509-not-mhs-gun-close/
According to the brochure, it takes in 17 rounds for full-size, 10 rounds for compact.
Barrel length is 4 inches, and MSRP is $649
Vickers Tactical
Practically Tactical
From: The Firearm Blog, Vickers Tactical, Practically Tactical