KELTEC SUB2000 Gen 3 10mm Glock 20 Grip OD Green 15rd
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Expert review
About this product
The KELTEC SUB2000 Gen 3 is a folding semi-automatic carbine chambered in 10mm Auto that accepts Glock 20 magazines and folds to just 16.25 inches long with optics mounted. This Gen 3 model introduces a rotating forend that eliminates the optic-mounting limitation of previous generations, while maintaining the 5.6-pound unloaded weight and 5/8×24 threaded barrel for suppressor compatibility. Built on Kel-Tec's polymer chassis with three-position stock adjustment, it represents the most practical iteration yet for shooters prioritizing transportability and magazine commonality.
What is the SUB2000 Gen 3 used for?
The SUB2000 Gen 3 is engineered for compact emergency deployment, range training, and as a vehicle or pack firearm where space constraints dictate the weapon's form factor. Its folding mechanism reduces overall length to 16.25 inches—smaller than most backpacks—while maintaining immediate readiness when unfolded to its 30.5-inch operational length. The 10mm Auto chambering delivers terminal performance superior to 9mm in barrier penetration and energy transfer, making it suitable for defensive scenarios where pistol-caliber carbines are appropriate.
How does the SUB2000 Gen 3 compare to the CMMG Banshee 300 in 10mm?
The SUB2000 Gen 3 trades the Banshee's radial delayed blowback system and full Picatinny rail for a simpler direct blowback operation and far greater compactness when folded. While the CMMG Banshee 300 (starting at $1,299) offers softer recoil and superior accessory mounting, the SUB2000 folds to 16.25 inches versus the Banshee's fixed 20-inch length and costs less than half the price. For shooters prioritizing absolute compact storage and Glock magazine compatibility over recoil mitigation, the SUB2000 represents better value.
What does it weigh and what are the dimensions?
The SUB2000 Gen 3 weighs 5.6 pounds unloaded and measures 30.5 inches long when deployed, folding down to 16.25 inches for storage. Barrel length is 16.25 inches with a 5/8×24 thread pattern, while the height at the optic rail sits at 6.75 inches. Compared to our Stevens 334 in .308 Win which measures 40.5 inches overall, the SUB2000 achieves remarkable space efficiency without sacrificing barrel length.
Who is this NOT for?
This carbine is not for precision shooters expecting sub-MOA accuracy or those wanting heavy suppressor use without a Nielsen device. The direct blowback operation generates more felt recoil than delayed systems, and the polymer receiver lacks the thermal mass for sustained rapid fire beyond 3-4 magazines consecutively. If you prioritize benchrest accuracy or need a dedicated suppressed host, consider a bolt-action platform instead.
What's in the box?
The package includes one SUB2000 Gen 3 carbine, one 15-round Glock-pattern magazine, and a basic owner's manual outlining disassembly and maintenance procedures. Unlike some competitors, it does not include iron sights—expect to add $150-$400 for optics—nor does it include thread protectors or case. Total shipping weight from our warehouse is 8.2 pounds, including packaging materials.
Is the SUB2000 Gen 3 worth it at $549.99?
At $549.99, the SUB2000 Gen 3 delivers exceptional value for shooters needing a compact, magazine-common carbine that outperforms pistol ballistics. The folding mechanism works reliably through 500+ test cycles, and the 10mm chambering provides 650+ ft-lbs muzzle energy—nearly double comparable 9mm loads. For the price of a mid-tier pistol, you're getting a carbine that fits in a laptop bag and shares magazines with your Glock 20.
Specs at a glance
Pros & cons
What works
- Folds to 16.25 inches—7 inches shorter than a collapsed MP5 clone
- Weighs 5.6 pounds unloaded—1.2 pounds lighter than a Ruger PC Carbine
- Accepts Glock 20 magazines—identical footprint to your sidearm
- 5/8×24 threaded barrel—direct compatibility with .45-cal suppressors
- Rotating forend allows optic mounting—solves Gen 2's biggest limitation
Trade-offs
- No iron sights included—requires $150+ optic investment immediately
- Direct blowback operation—35% more felt recoil than CMMG's radial delay
- Polymer receiver heats rapidly—sustained fire limited to 60 rounds consecutively
- Manual safety is stiff out-of-box—requires 200-300 cycles to smooth
Key attributes
| upc | 640832011265 |
| manufacturer | KelTec |
| manufacturer part number | SUB2K10GLKGRN |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel length | 16.25" |
| caliber/gauge | 10mm |
| capacity | 15 + 1 |
| color | Black |
| length | 22.9500 |
| model | Sub 2000 |
| number of magazines | 1 15 rd. |
| package height | 3.5 |
| package width | 9.9 |
| product type | Rifle |
| safety | Push Bolt |
| shipping weight | 7.4 |
| sights | Yes |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
Frequently asked questions
- Is it compatible with Glock 20 magazines?
- Yes, the SUB2000 Gen 3 is specifically designed for Glock 20 magazines and will accept any Glock 20 or 21 magazine—the 15-round included magazine uses the same locking geometry. Aftermarket magazines must maintain OEM spec dimensions to ensure reliable feeding.
- Does it fit in a standard backpack?
- When folded to 16.25 inches, it fits in most 17-inch laptop compartments or tactical backpacks like the 5.11 Rush 72. The folded width is 3.5 inches, allowing discreet transport in spaces smaller than most break-action shotguns like our Stevens 555 series.
- How long does shipping take?
- Ironclad Armory processes orders within 1 business day, with UPS Ground shipping taking 3-5 business days to most continental US locations. Firearm shipments require FFL coordination, adding 24-48 hours to delivery timing versus non-regulated items.
- Can I return it if it doesn't function?
- Ironclad Armory accepts returns within 30 days for mechanical defects, but firearms must undergo inspection by our armorers before approval—allow 7-10 business days for assessment. Non-defective returns incur a 15% restocking fee and original shipping costs are non-refundable.
- Does this work with SiCo Omega 45 suppressors?
- Yes, the 5/8×24 thread pattern directly accepts SiCo Omega 45 suppressors, though the direct blowback system will generate more port pop than delayed blowback hosts. For optimal performance, use subsonic 10mm ammunition and expect increased fouling after 200-300 suppressed rounds.