Description
The CMMG MK47 K SBR 7.62x39mm 10″ RKM9 Hand Guard – All NFA Rules Apply is a factory-built, short-barreled rifle designed for close-quarters dominance. It merges the hard-hitting 7.62x39mm cartridge with the ergonomic control of an AR platform, featuring a compact 10-inch barrel and a robust RKM9 M-LOK handguard for a potent, maneuverable package that requires ATF registration under the National Firearms Act.
Key Features
- Chambered in 7.62x39mm for decisive terminal performance.
- 10-inch barrel provides optimal ballistic efficiency in a compact SBR profile.
- CMMG’s proprietary RKM9 M-LOK handguard offers a slim, lightweight mounting platform.
- Factory-built SBR configuration—no gunsmithing required for assembly.
- Reliable MK47 platform accepts standard AK-pattern magazines.
- Mil-spec compatible with many AR-15 triggers, grips, and stocks.
Specifications & Details
| Caliber | 7.62x39mm |
| Barrel Length | 10 inches |
| Overall Length (Stock Collapsed) | Approx. 26.5 inches |
| Handguard | CMMG RKM9 M-LOK |
| Magazine Compatibility | AK-pattern (CMMG, Magpul, etc.) |
| Weight (Unloaded) | Approx. 6.8 lbs |
This SBR is built on CMMG’s dedicated MK47 lower receiver, engineered specifically for the 7.62x39mm round. The system uses a proprietary bolt and barrel extension to handle the cartridge’s geometry and pressure, eliminating the reliability issues often seen with standard AR-15 parts. The RKM9 handguard provides a full 9 inches of real estate for lights, lasers, and grips, keeping your support hand forward and in control. At a price of $1342.40, it represents a significant value for a factory SBR from a respected manufacturer. Remember, FFL transfer required for firearm purchases, and this item ships to Missouri and compliant US states following all NFA protocols.
Who This Rifle Is For
This is a tool for the prepared individual who understands that context dictates capability. When it comes to home defense or property patrol in rural Missouri, the 7.62x39mm’s penetration through barriers and immediate stopping power is a tangible advantage. It’s for the shooter who wants the manual of arms and accessory compatibility of an AR but demands the ballistic authority of the Eastern Bloc cartridge. It also serves as a supremely compact and potent truck or ranch gun where engagement distances are measured in tens of yards, not hundreds. The 10-inch barrel makes it highly maneuverable in tight spaces without sacrificing too much velocity—you’re looking at a system that balances power and size with intent.
Pros & Cons
Pros: The primary advantage is ballistic. The 7.62x39mm from a 10-inch barrel outperforms 5.56mm in short-barrel applications, retaining more energy and offering better performance on medium game or through intermediate obstacles. The MK47 platform’s reliability with quality AK magazines is proven. The factory SBR build means it’s drop-in ready, with CMMG handling the fit and headspacing. The RKM9 handguard is a modern, lightweight upgrade over clunky quad rails.
Cons: The obvious one is the NFA process—you must file a Form 4, pay the $200 tax, and wait for approval before taking possession. Ammunition, while plentiful, is generally steel-cased and less precise than match-grade .223. The rifle is heavier than a comparable 5.56mm SBR, and magazine changes with AK-pattern mags are slower than with AR-style mags. That said, the trade-off for power is often weight and process.
Frequently Asked Questions
Q: What magazines does this MK47 SBR use?
A: It uses standard AK-47 pattern magazines. We recommend and often stock reliable options from Magpul (PMAG 30 AK/AKM MOE) and CMMG’s own branded magazines for guaranteed compatibility and smooth feeding.
Q: What is the process for purchasing this NFA item?
A: You will select the item and complete payment, then you must submit an ATF Form 4 with a $200 tax stamp through your local FFL/SOT holder who handles NFA transfers. Once approved (processing times vary), you can take possession. We coordinate the shipment directly to your chosen dealer.
Q: Can I attach a suppressor to this 10-inch barrel?
A: Yes, the barrel features a standard 5/8×24 thread pitch, which is common for .30 caliber suppressors. You would need to ensure your muzzle device is compatible with your suppressor’s mounting system, or use a direct-thread model. Just remember, attaching a suppressor creates another NFA item requiring its own tax stamp.
Ready to initiate the process for this compact, high-impact SBR? This CMMG MK47 K SBR is available at firearms-missouri.com for Missouri residents and nationwide through our network of NFA dealers.
Reviews
There are no reviews yet.