Kriss Vector SDP is the lightest and most agile member of the Vector family. The Kriss Vector SDP delivers impressibe proformance in a compact, versitile footprint ideal for personal protection and home defense compatable with full size glock mags. This Vector has a delayed blowback operating system wuth a small bolt carrier group. Also comes with low profile flip sights, a single stage trigger, threaded barrel, bottom M-Lok rail, ambi mag release, interchangeable pistol grip, 1 glock 40 round mag, as well as an SB Tactical brace, SBA3