A Picatinny rail for the Heckler & Koch (HK) MP5K, in the Knight's Armament Company (KAC) style. Tyr 1 Outfitters calls it the M.O.A.R.-K, short for MP5K Optics and Accessories Rail, and builds it for the MP5K and MP5K clones only.
Knight's Armament's MP5 rail adapter system (RAS), KAC part 97198, is the familiar rail for the full-size MP5. The K has a shorter, slimmer front end, and that full-size KAC rail will not fit it.
The M.O.A.R.-K brings the KAC style and mounting interface to the K. The frame that clamps to the gun is steel, and the Picatinny rails are aluminum. Your short gun gets the same class of setup as its big brother.
Run it alone, or pair it with an optic mount. It accepts most KAC optic mounts, so KAC mounting hardware already in your drawer has a good chance of finding a home here. Tyr 1 recommends the Shadow Strategic MMOM for its modularity, and that is where we would start on a fresh build.
If you own an HK MP5K or an MP5K clone, yes. This rail is made for the K, and only the K. For a full-size MP5, MP5SD or HK94, look at the KAC MP5 RAS itself.
The M.O.A.R.-K replaces the factory handguard and clamps to the receiver ring and barrel. The rear clamp lip has to seat fully in the groove at the front of the receiver ring, and the bottom hex screw on the rear clamp torques to 20 inch-pounds. Do not overtighten it. Tyr 1 publishes step-by-step install instructions. Optic mounts, optics and accessories are sold separately.
The M.O.A.R.-K rail and its mounting hardware.
Not sure which pattern your clone is? Send us a photo or give us a call, and we will help you sort it out. Then give your K the rail it has been missing.
| Manufacturer | Tyr 1 Outfitters |
| Model | M.O.A.R.-K (MP5K Optics and Accessories Rail) |
| Manufacturer part number | MOARK |
| Type | Picatinny rail; replaces the factory handguard |
| Material | Steel frame; aluminum rails |
| Style | KAC-style |
| Optic mounts | Most KAC optic mounts; Shadow Strategic MMOM recommended |
| Fits | HK MP5K and MP5K clones |
| Does not fit | Full-size MP5, MP5SD, HK94 |
| Color | Black |
| Installation | Clamp-on; rear clamp bottom hex screw 20 in-lb |
| Included | Rail and mounting hardware |
| Not included | Optic mount, optic, accessories |
| Ships | Small parts ship from our shop in 2 to 4 days |
Charlie's Custom Clones and Tyr 1 Outfitters are not affiliated with, endorsed by, or sponsored by Heckler & Koch or Knight's Armament Company. Their names are used only to describe fit and style.