BudsGunShop.com - Threaded barrel?

Silas, this Gen 2 Sub 2000 has a 1/2x28 TPI Threaded Barrel.

Yes it does and it is a Gen 2 Brand: Kel-Tec
UPC: 640832004441
MFR #: SUB2K9BRTA92BGRNHC see ****Specifications and Features:
Kel-Tec SUB-2000 ********G2 SUB2K9BRTA92BGRNHC
Semi Automatic Rifle - Pistol Caliber Carbine
9mm Luger
17 Rounds
16.25" Barrel with 1:10 Twist
***********Threaded Muzzle with 1/2x28 TPI
Uses Beretta 92 Magazines
M-LOK Compatible Polymer Forend with Top and Bottom Picatinny Rail
Three Position Adjustable Stock
Gator Grip Texturing
Ergonomic Charging Handle
Adjustable Fluorescent Front Sight
Ghost Ring Rear Sight
Crossbolt Safety
OD Green
Overall Length 30.5"
Weight 4.25 lbs Unloaded