The KelTec KSG Compact 12 Gauge 18.5in Black is a bullpup pump-action shotgun that shrinks your footprint without shrinking your firepower. It packs dual magazine tubes, a patented downward ejection system, and an integrated forend light into a package shorter than most SBRs—yet still legal with a full 18.5-inch barrel. This is the shotgun for shooters who want maximum capability in a minimum package.
| Manufacturer | KelTec |
|---|---|
| Model | KSG Compact |
| Material | Synthetic polymer stock, steel barrel and receiver |
| Compatibility | 12 Gauge 2.75″ and 3″ shells |
| Finish | Black parkerized |
| Weight | 6.9 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Dual Magazine Tubes: Carry 6+6 rounds of 2.75″ shells in two independent tubes, and switch between them with a simple thumb lever. Why it matters: You get a 12-round total capacity in a package shorter than most 5-shot pumps—no reloading mid-drill.
- Patented Downward Ejection: Spent shells drop straight down, not left or right. Why it matters: Ambidextrous handling means lefties and righties can run it without brass to the face, and you can shoot from either shoulder in tight spaces.
- Integrated Forend Light: A built-in LED light lives in the forend, wired to a pressure pad on the pump. Why it matters: No extra mounting hardware or batteries to buy—you get immediate illumination for low-light scenarios right out of the box.
- Picatinny Optics Rail: A full-length top rail accepts red dots, reflex sights, or magnifiers. Why it matters: You can zero a micro red dot for fast target acquisition, turning a pump shotgun into a precision tool at home-defense distances.
- 18.5″ Cylinder-Bore Barrel: The barrel is threaded for standard 12-gauge chokes (cylinder bore included). Why it matters: You get a full-length barrel for legal compliance and pattern consistency, yet the bullpup layout keeps overall length under 30 inches.
Who It’s For
This is for the shooter who values compact storage without compromise—think truck guns, backpack shotguns, or home-defense setups where every inch counts. It’s also for the tech early adopter who wants KelTec’s latest innovation: a pump shotgun that handles like a shorty but performs like a full-size. If you’ve ever wished your shotgun were shorter but still legal, this is your answer.
Pros & Cons
- Pro: 26.5-inch overall length—shorter than most SBRs, yet fully legal without NFA paperwork.
- Pro: Dual tubes let you load different ammo types (buck in one, slugs in the other) and select on the fly.
- Pro: The integrated light saves rail space and eliminates the need for a separate weaponlight purchase.
- Con: The pump stroke is shorter than a traditional shotgun, which can feel different if you’re used to long-action pumps—practice the stroke to avoid short-shucking.
Comparison
| Feature | KelTec KSG Compact | Mossberg 590 Shockwave | Remington 870 Tac-14 |
|---|---|---|---|
| Overall Length | 26.5″ | 26.3″ | 26.3″ |
| Capacity | 12 rounds (6+6) | 5+1 | 4+1 |
| Barrel Length | 18.5″ | 14.375″ | 14″ |
| Weight | 6.9 lbs | 5.3 lbs | 6.0 lbs |
| Action | Bullpup pump | Traditional pump (bird’s-head grip) | Traditional pump (bird’s-head grip) |
| Stock | Fixed bullpup | Raptor grip (no stock) | Shockwave Raptor grip (no stock) |
| Light | Integrated forend LED | None | None |
The KSG Compact gives you nearly 2x the capacity of the Shockwave or Tac-14 in a similar overall length—plus a stock for better control and an integrated light. The trade-off is weight: it’s 1.5 lbs heavier than the Shockwave, but that weight pays for dual tubes and a full-length barrel.
FAQ
Is the KelTec KSG Compact legal in my state?
Because it has a 18.5-inch barrel and 26.5-inch overall length, it meets federal requirements for a non-NFA shotgun. However, some states (e.g., California, New York, Massachusetts) have additional restrictions on capacity, barrel length, or bullpup configurations. Check your local laws before ordering.
Does the KSG Compact come with a choke?
Yes, it ships with a cylinder-bore choke installed. The barrel is threaded for standard 12-gauge Beretta/Benelli Mobil-style chokes, so you can swap in improved cylinder, modified, or full chokes as needed.
How do I switch between the two magazine tubes?
There’s a small lever just behind the forend on the left side. Push it left for Tube A, right for Tube B. You can visually confirm which tube is selected by a small indicator window on the receiver.
Can I mount a red dot on the KSG Compact?
Yes. The top Picatinny rail runs the full length of the receiver. Any standard red dot, reflex sight, or holographic sight with a Picatinny base will mount directly. A low-profile micro red dot is ideal to keep the sight line low.
Trust & Delivery
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
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Last updated: April 2026
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