![Magpul M-lok Rail Section - 873750001661 Magpul M-lok Rail Section - 873750001661](https://cdn11.bigcommerce.com/s-0xmhwue6/images/stencil/300x300/products/23496/51740/Magpul-M-lok-Rail-Section-873750001661_image1__83376.1672433085.jpg?c=2)
Kalashnikov USA's Eastern Bloc K-21 M-LOK Rail & Fore-end System is the perfect upgrade to the KR-103 or KP-9/KR-9 series of rifles and pistols. It replaces the original polymer/wood fore-end, and installs quickly and easily. Once installed, it provides a wide range of customization options thanks to multiple M-LOK slots and picatinny rails. These attachment points can be used to mount accessories such as tactical lights/lasers, vertical grips, and forward-mounted optics.