KelTec SUB-SDP Kit 9mm Folding Pistol, 6 in. Threaded Barrel, Black The KelTec SUB-SDP (part number SDP9BLKT) is the pistol version of the SUB2000 folding carbine, nicknamed the "Nub Sub." This kit configuration ships with an integrated folding pistol brace, KelTec's SUB2000 compensator, an angled forend magazine holder and two 27-round PMAG GL9 magazines. It runs Glock 17-pattern magazines, has a 6-inch barrel threaded 1/2x28 and folds in half to just 10 inches for storage and transport. Shop the KelTec SUB-SDP Kit at BattleHawk Armory. A compact, range-ready 9mm package with a spare magazine carried right on the gun. Why Buy It Folds to 10 in.: The barrel and forend fold back over the receiver, like the SUB2000. Brace installed: Every SUB-SDP ships with an integrated pistol brace for steadier, faster follow-up shots. Kit extras: Compensator, angled forend magazine holder and two 27-round PMAG GL9 magazines. Glock-pattern magazines: Accepts Glock 17-style 9mm magazines. Threaded barrel: 6 in., 1/2x28, with a 1:10 twist. M-LOK attachment points: Room for a light, laser or other accessories. Folding Design and Brace The SUB-SDP keeps the SUB2000's signature folding action. Unlock it and the barrel and forend swing up and back over the top of the receiver, cutting the pistol from 17.7 inches to 10 inches. That makes it easy to fit in a small bag, a vehicle or a safe. The integrated pistol brace gives you an extra point of contact for more control than a standard pistol grip alone, while keeping the overall package short. Kit Accessories This kit adds the parts most owners would buy anyway. The SUB2000 compensator threads onto the 1/2x28 muzzle to help manage muzzle rise. The angled forend magazine holder carries a second 27-round magazine forward of the magazine well, where it also works as a forward grip, so a reload is always on the gun. Two 27-round PMAG GL9 magazines are included, for 27+1 capacity with the spare on board. Optics and Sights No sights or optic come with this kit, so plan to add a red dot or other sighting system. The top rail accepts a compact optic, and the M-LOK slots take lights, lasers and other accessories. Specifications Brand: KelTec Model: SUB-SDP Kit Part number: SDP9BLKT UPC: 640832012699 Caliber: 9mm Action: Semi-auto, blowback Capacity: 27+1 Magazines included: 2 x 27-round PMAG GL9 (Glock 17 pattern) Barrel: 6 in., threaded 1/2x28 Twist: 1:10 in. Muzzle device: SUB2000 compensator Brace: Integrated folding pistol brace Forend: Angled magazine holder, M-LOK attachment points Sights: None included Trigger pull: 5 lb Overall length: 17.7 in. (10 in. folded) Height: 6 in. Width: 1.94 in. Weight: 3.57 lb unloaded Color: Black Frequently Asked Questions What magazines does it use? Glock 17-pattern 9mm magazines. Two 27-round PMAG GL9 magazines are included. Does it come with sights or an optic? No. Plan to add your own red dot or sights. How small does it fold? It folds to 10 inches long. Is the barrel threaded? Yes, 1/2x28, and the kit includes a compensator. How is this different from the standard SUB-SDP? The standard pistol ships with a 17-round magazine. This kit adds the compensator, the forend magazine holder and two 27-round magazines. Want a longer barrel? Compare the KelTec SUB-2000 Gen 2 9mm folding carbine.