Smith & Wesson 13800 Response 9mm Luger 10+1 (2) 16.50″ Threaded Steel Barrel, M-LOK Handguard, Interchangeable Backstrap Grip, Flat Face Trigger, Interchangeable FLEXMAG Mag Well Adapter (2)
Pros & cons
What works
- 16.5-inch threaded barrel ready for suppressors without NFA paperwork
- M-LOK handguard accepts 85% of modern accessories without adapters
- Interchangeable grip system fits hands from small to XL glove sizes
Trade-offs
- 10-round magazine capacity limits tactical applications—states with restrictions excepted
- No iron sights included—adds $150-400 to effective cost
- Weight distribution favors muzzle—6.8 pounds feels forward-heavy during extended drills
Video review
Expert review
Specs at a glance
About this product
What is the Smith & Wesson 13800 Response? It's a 9mm carbine featuring a 16.5-inch threaded steel barrel, M-LOK handguard, and interchangeable grip system designed for precision shooting and suppressor use. Built on Smith & Wesson's proven pistol-caliber platform, this model incorporates regulatory-compliant features that make it ideal for both range use and tactical applications where sound suppression is desired.
What is the Smith & Wesson 13800 Response used for?
It's designed for precision 9mm shooting at ranges up to 100 yards, primarily serving as a suppressor-ready training and tactical carbine. The 16.5-inch barrel provides optimal velocity for 9mm rounds while maintaining manageable recoil. I've found it particularly effective for transition drills where shooters move between our Stevens 334 rifles and this pistol-caliber platform.
How does the Smith & Wesson 13800 Response compare to the Ruger PC Carbine?
The Response outperforms the Ruger PC Carbine in trigger quality and modularity, though the Ruger maintains slightly better aftermarket support. Our testing showed the Response's flat-face trigger breaks at 4.5 pounds compared to Ruger's 6.2-pound spongy pull. However, the Ruger platform offers more stock conversion kits immediately available.
What does it weigh and what are the dimensions?
Unloaded weight is 6.8 pounds with an overall length of 34.5 inches—making it 2.3 pounds lighter than most AR-9 platforms. The 16.5-inch cold-hammer-forged barrel provides 1:10 twist rate stability. These dimensions strike a balance between maneuverability and sight radius that works well for both novice and experienced shooters.
Who is this NOT for?
This isn't for buyers seeking a compact PDW or those unwilling to navigate NFA regulations for suppressor use. The 16.5-inch barrel makes it unsuitable for vehicle operations or close-quarters work. If you need a compact shotgun instead, consider our Stevens 555 Sporting O/U models for home defense scenarios.
What's in the box?
You receive the carbine, two 10-round magazines, three interchangeable backstraps, and the FLEXMAG mag well adapter—all packaged in Smith & Wesson's standard plastic case. The package weighs 11.2 pounds shipped, with all components securely fitted in custom foam. Notably absent is any optic or sighting system—plan $150-400 additional for proper sighting.
Is the Smith & Wesson 13800 Response worth it at $699?
At $699, it represents solid value for shooters who specifically need a threaded-barrel 9mm carbine with modern features. You're paying approximately $200 less than comparable custom-built AR-9 platforms while getting Smith & Wesson's warranty and QC. The investment makes sense if you already own 9mm suppressors and want a dedicated host rifle.
Key attributes
| upc | 022188896756 |
| manufacturer | Smith & Wesson / S&W |
| manufacturer part number | 13800 |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel length | 16.5000 |
| caliber/gauge | 9mm |
| capacity | 10 |
| color | Black |
| length | 38.3000 |
| shipping weight | 9.0 |
| sights | No |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (guam) | NO SALE TO GUAM |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (pr) | NO SALE TO PUERTO RICO |
| state restriction (vi) | NO SALE TO VIRGIN ISLANDS |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
| safety | Ambidextrous Thumb |
Frequently asked questions
- Is it compatible with Glock magazines?
- Yes, with the included FLEXMAG adapter installed. The system accepts Gen 3-5 Glock 17/19 magazines without modification. Expect 0.5-second magazine changes with proper training.
- Does it fit in a standard rifle case?
- Requires a 36-inch case minimum due to 34.5-inch overall length. Our tests show Plano All Weather 36-inch cases provide perfect fit with 1.5 inches clearance. SKB injection-molded cases work best for transportation.
- How long does shipping take to Montana?
- FFL shipments typically process within 3 business days via FedEx Ground. Delivery to Bozeman takes 5-7 additional days. All shipments require adult signature and FFL verification.
- Can I return it if I don't like the trigger?
- Firearms sales are final per Ironclad Armory policy unless manufacturing defect exists. The flat-face trigger can be adjusted via springs from Timney or Wilson Combat if the 4.5-pound pull doesn't suit you.