The KelTec SUB-SDP 9mm in green is the pistol version of the SUB2000 folding carbine, built around a 6-inch threaded barrel and an integrated pistol brace (KelTec part no. SDP9GRN). KelTec calls it the Nub Sub, and it is the most compact form the platform has ever taken, folding down to 10 inches. The polymer receiver carries the green finish, with a polymer grip and a folding brace that keeps the package short enough for a bag or a truck seat. An integrated M-LOK rail gives you a place to mount a light or laser, and the threaded muzzle accepts a muzzle device. It suits range days, vehicle storage and home defense for shooters who like the SUB2000 idea but want it as a braced pistol.

Key Specifications

• The chambering is 9mm, a common and affordable cartridge for a compact range and defense pistol.
• Magazine capacity is 17 rounds with one in the chamber for a 17+1 total, enough for extended range sessions without constant reloading.
• The barrel is 6 inches long, which gives a 9mm pistol more sight radius and velocity than a typical compact handgun.
• The muzzle is threaded 1/2-inch-28, the standard 9mm thread pattern for compensators and other muzzle devices.
• Overall length is 17.7 inches unfolded, a size that stays manageable even with the brace extended.
• Overall length folded is 10 inches, so the pistol packs down small for a backpack or a vehicle.
• Unloaded weight is 3.57 pounds, light enough to carry and shoot comfortably for a full range session.
• The receiver is green polymer with a polymer grip, a lightweight build that resists corrosion and keeps the gun easy to handle.
• An integrated pistol brace comes on every SUB-SDP, adding control for faster follow-up shots from a compact footprint.
• Trigger pull is rated at 5 pounds, a manageable weight for a defensive or range pistol.

Frequently Asked Questions

Does the green SUB-SDP have a threaded barrel? Yes. The 6-inch barrel is threaded 1/2-inch-28, so muzzle devices cut for that pattern will mount.

Can I mount a light or laser on it? Yes. The SUB-SDP has an integrated M-LOK rail intended for lights, lasers and other accessories.

How big is it when folded? The SUB-SDP folds to an overall length of 10 inches and measures 17.7 inches unfolded, with a 6-inch barrel and a height of 6 inches.

Buy the KelTec SUB-SDP 9mm Pistol, Green, 6-Inch Threaded Barrel

A folding pistol-caliber platform in a braced pistol format is a niche that KelTec owns, and the green SUB-SDP gives it a distinct look on the rack and at the range. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more semi-auto handguns while you are here.