Now, KelTec is expanding its SUB2000 line yet again with the SUB-SDP, a foldable, braced pistol that KelTec folks colloquially refer to as the "Nub Sub." With the SUB-SDP, KelTec takes the already-compact SUB2000 platform to a new level of compactness. As with other models in KelTec's SUB2000 lineup, the SUB-SDP accepts all Glock-pattern detachable box magazines, and one flush-fit, 17-round magazine ships with the gun. Along with the standard SUB-SDP model, KelTec also created its SUB-SDP Defender package. Suggested retail pricing on the KelTec SUB-SDP is $599, and the SUB-SDP Defender model retails for $799.