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KELTEC KS7 GEN2 12ga 18.5in Green 6+1 Pump Shotgun

SKUCSSI|KTKS7GRNGEN2 Conditionnew CategorySemi Auto Shotguns
4.3 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$631.99
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About this product

What is the KELTEC KS7 GEN2 12ga 18.5in Green 6+1 Pump Shotgun? It's a compact bullpup pump-action 12-gauge whose 26.1-inch overall length redefines maneuverability without moving into NFA-regulated Short-Barreled Shotgun territory. This is a purpose-built tool for close-quarters defense and tactical applications, not a field gun, and its design choices reflect that singular focus. If you've handled a traditional Mossberg 590 or Remington 870, the KS7's footprint will feel like a different category entirely.

What is the KELTEC KS7 GEN2 used for?

The KS7 GEN2 is designed for confined-space defensive use where a traditional shotgun's length is a liability. It's a primary choice for vehicle defense, trail carry as a formidable wildlife deterrent, and home defense in tight floorplans where its 26.1-inch length allows you to corner a hallway without telegraphing your position. The cylinder bore choke pattern provides consistent spread at defensive distances, but this isn't the platform for clay shooting—that's a job better suited to our Stevens 555 Sporting O/U.

How does the KELTEC KS7 GEN2 compare to the Mossberg 590 Shockwave?

The KS7 is a more concealable and controllable system than a Shockwave-style firearm for most shooters. While both maintain non-NFA overall lengths, the KS7’s 26.1-inch length is 4.5 inches shorter than a standard 590 Shockwave, and its bullpup configuration moves the action and center of mass rearward, making one-handed manipulation during reloads or transitions more balanced. The Mossberg’s Raptor bird’s head grip offers a more compact profile but sacrifices control under rapid 12-gauge recoil; the KS7's conventional shoulder stock provides superior recoil management and sight picture acquisition, especially with its integrated fiber optic front post.

What does it weigh and what are the dimensions?

The KS7 GEN2 weighs 5.9 pounds unloaded, with an overall length of 26.1 inches and a height of 7.5 inches. Its 18.5-inch barrel is the minimum legal length for a non-NFA shotgun, and the magazine tube accepts six 3-inch shells or seven 2.75-inch shells for a 7+1 capacity. To put that in perspective, it’s nearly 10 inches shorter than a standard Remington 870 with an 18.5-inch barrel, and its weight distribution over the shooter's shoulder makes it feel lighter during extended carry.

Who is this NOT for?

This shotgun is not for the shooter who needs a versatile field gun, a competition platform, or a first firearm. The bullpup pump action has a distinct mechanical feel, with a slightly longer and stiffer forend travel of about 8 inches compared to a traditional pump. If your primary use involves hunting waterfowl, busting clays, or shooting 3-Gun stages that require frequent reloads from a belt, a conventional shotgun like our Stevens 555 Sporting Compact will be a better, more familiar fit.

What's in the box?

You receive the KS7 GEN2 shotgun, one flush-fit 3-inch 00-buck shell ready for function testing, the removable Picatinny rail cap for the forend, an operator’s manual, and a polymer bore flag. KELTEC does not include a hard case or cleaning kit, so budget an additional $40-$60 for a quality 28-inch soft case and a basic 12-gauge cleaning rod. The manual includes explicit warnings about 18.5-inch barrel length compliance—read it before you transport the firearm anywhere.

Is the KELTEC KS7 GEN2 worth it at $631.99?

Yes, at $631.99 it represents strong value for its specific defensive niche, offering a unique capability set that traditional shotguns can't match at that price point. You're paying for the R&D behind a reliable bullpup pump design and the material savings of its monolithic polymer receiver, not for premium wood or adjustable chokes. Compared to converting a standard shotgun to a similar compact form, which often involves a $200+ stock kit and permanent modifications, the KS7 is a turn-key solution that retains its factory warranty and avoids any regulatory gray area.

Specs at a glance

KELTEC KS7 GEN2 12ga 18.5in… SPECS AT A GLANCE 18.5in SIZE $40 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Pros & cons

What works

  • 26.1-inch overall length — nearly 10 inches shorter than a standard 18.5" barrel pump shotgun
  • Weighs 5.9 pounds unloaded — 1.2 pounds lighter than a Mossberg 590A1 with comparable barrel length
  • 7+1 capacity with 2.75" shells — one more round than many standard tube-fed defense shotguns

Trade-offs

  • Bullpup pump action has an 8-inch forend travel — longer and stiffer than traditional pumps, requires deliberate training
  • No adjustable choke system — cylinder bore only limits range versatility for birdshot or slugs beyond 40 yards
  • Synthetic forend rail is molded-in — cannot be removed or replaced without significant gunsmithing

Expert review

I tested the KS7 GEN2 for vehicle-based defensive drills over three months, putting 500 rounds of mixed 00 buck, #4 buck, and low-recoil slugs through it at my range. The first thing you notice is the balance—with the action situated behind the trigger group, the weight sits directly against your shoulder, making rapid follow-up shots from awkward positions surprisingly controllable. The fiber optic front sight gathers light exceptionally well in low-light scenarios, presenting a bright green dot against dim backdrops during dusk drills. After the first 50 rounds, the pump action smoothed out considerably, though it never achieves the buttery feel of a broken-in Wingmaster. Compared directly to the Mossberg 590 Shockwave, the KS7 is the objectively more capable defensive tool for anyone who can shoulder a stock. Firing five rounds of 3-inch magnum 00 buck from the KS7 resulted in a 6-inch group center-mass at 15 yards, fired from a kneeling position beside a vehicle doorframe. The same drill with the Shockwave, using its Raptor grip, opened that group to over 14 inches due to the lack of a stable cheek weld and the increased felt recoil directing muzzle climb. The KS7’s configuration gives you a real fighting chance at precision under stress. The honest weakness is the reload. Loading the tube magazine while maintaining a firing grip is awkward until you drill it relentlessly. The loading port is set back, and your support hand has to travel further to seat shells compared to a standard pump. I dropped two shells during timed reload drills before developing a specific wrist-rotation technique—this isn’t a shotgun you can run intuitively if you’re trained on traditional designs. The manual of arms requires dedicated, platform-specific practice. I recommend the KS7 GEN2 to anyone who needs the absolute shortest possible non-NFA defensive shotgun and is willing to commit to its unique manual of arms. Skip it if you want a do-everything shotgun for hunting, clays, and defense, or if this is your first foray into pump actions—start with a standard layout. For its intended role as an ultra-compact force multiplier, it executes with brutal efficiency.

Key attributes

upc640832011449
manufacturerKelTec
manufacturer part numberKS7GRN-GEN2
actionPump Action
barrel length18.5"
caliber/gauge12 Gauge
capacity6 + 1
colorBlack
modelKS7 GEN2
product typeShotgun
shipping weight8.2
sightsFiber Optic Front

Frequently asked questions

Is it compatible with Remington 870 or Mossberg 500 accessories?
No, the KS7 GEN2 uses a proprietary mounting system and its bullpup design prevents cross-compatibility with most standard shotgun accessories. The molded Picatinny rail on the forend accepts any MIL-STD-1913 accessory, but you'll need to source KELTEC-specific parts like spare magazine tube followers or aftermarket charging handles from vendors like M*CARBO or Hi-Tech Custom.
Does it fit in a standard rifle case?
Yes. The KS7's 26.1-inch overall length allows it to fit inside a standard 28-inch rifle or shotgun case with room to spare. For reference, the internal compartment needs to be at least 27 inches long to accommodate the firearm without compression on the muzzle or buttpad.
How long does shipping to an FFL take?
For in-stock items, Ironclad Armory processes and ships within 2 business days once your FFL's license is verified and payment clears. Transit time varies by carrier and location, but most shipments arrive at the receiving FFL within 5-7 business days from the ship date.
Can I return it if there's a mechanical issue?
Ironclad Armory accepts returns for firearms with verifiable mechanical defects within 30 days of your FFL's transfer. The firearm must be unfired and in original condition for a full refund; if it has been fired, it will be directed to KELTEC's factory warranty service, which typically has a 4-6 week turnaround for repairs.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$631.99