Description
I was on the fence about a truck gun for years. I wanted something compact, reliable, and chambered in a serious caliber that wouldn’t break the bank. Then I got my hands on the Kel-Tec Sub 2000 .40SW 16″ Barrel Glock 23 Magazine Grip 1- 10rd Mag. It’s a folding carbine that fires .40 S&W, uses Glock 23 magazines, and collapses to just over 16 inches for easy stowage. At $419.23, it solves a specific problem without creating new ones.
Here’s the thing—this isn’t a precision rifle or a home defense primary for most. It’s a purpose-built tool for portability and compatibility. I’ve put a few hundred rounds of various .40 S&W loads through it, from 165-grain FMJ to 180-grain hollow points, and its function has been solid. The genius is in the fold. With a simple twist of the locking collar, the barrel pivots 180 degrees, folding the action in half and tucking neatly behind the grip. The folded length is a mere 16.25 inches, making it disappear into a backpack or under a truck seat. That compactness, paired with the punch of .40 S&W, is the whole point.
Let’s talk features. The blowback operation is straightforward and proven. Recoil is surprisingly manageable for a lightweight carbine in .40; it’s more of a firm push than a sharp snap. The 16-inch barrel gives you a decent sight radius and a bit more velocity than a pistol, and the overall weight is a hair over 4 pounds unloaded. The real star is the magazine compatibility. This model is configured specifically for Glock 23 magazines. That means you have instant access to a massive aftermarket of reliable, affordable mags. If your sidearm is a Glock 22 or 23, you’ve got magazine commonality, which is a huge logistical win. No gunsmithing required to make it work—it’s drop-in ready with those mags.
| Caliber | .40 S&W |
| Barrel Length | 16.1 inches |
| Overall Length (Folded) | 16.25 inches |
| Weight (Unloaded) | 4.25 lbs |
| Magazine | 1x 10-round (Glock 23 pattern) |
| Action | Blowback, Semi-Auto |
So, what are the pros and cons? On the plus side, the folding design is brilliantly simple and utterly effective. The Glock magazine ecosystem is a massive advantage for parts and spares. The price point is very accessible for a dedicated truck or bug-out carbine. On the downside, the stock iron sights are basic and the cheek weld on the bare polymer tube is, well, spartan. The trigger is serviceable but nothing to write home about. It’s a utility player, not a showpiece.
Who is this for? It’s perfect for the Missouri outdoorsman who wants a compact, capable carbine to toss in a vehicle or ATV. It’s for the shooter who already owns a Glock .40 and wants a long-gun companion that shares ammo and magazines. It’s a solid choice for a low-profile, grab-and-go option where its compact folded size is the primary requirement. This model is available at firearms-missouri.com for Missouri residents and nationwide.
Frequently Asked Questions
Q: Will it accept magazines from other Glock models?
A: This specific model is designed for double-stack .40 S&W Glock magazines. That includes mags from the Glock 22, 23, and 27. It will not accept 9mm Glock mags or .45 ACP mags without modification.
Q: Is the folding mechanism robust and safe?
A: Yes. The locking collar is positive and secure. When locked open for firing, the action is solid—I’ve never experienced any play or wobble during operation. Always visually and physically confirm it’s locked before firing.
Q: Can optics be mounted?
A: It can, but it requires an aftermarket accessory. The standard top rail is a single Picatinny section that folds with the barrel. To maintain zero with an optic when folding, you’d need a dedicated mount that replaces the rear sight assembly. It’s a popular upgrade.
If the idea of a highly portable, instantly deployable .40 S&W carbine that leverages your existing Glock magazine stash speaks to you, take a closer look at this Sub 2000 on our site. Remember, an FFL transfer is required for firearm purchases.
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