The Geissele Automatics MK14, Super Modular Rail, Handguard, 9.3, M-LOK, Barrel Nut Wrench Sold Separately (GEI-02-243), Gas Block Not Included, Black 05-578B is a top-of-the-line rail system that is designed to enhance the performance of your firearm. Manufactured by Geissele Automatics, a renowned brand for high-quality firearm accessories, this rail system is perfect for the tactical shooter or enthusiast. The 9.3 length provides ample space for mounting accessories such as lights, lasers, and grips, while the M-LOK® compatibility allows for easy attachment and customization. Made from durable materials, this black rail system is built to last and withstand rigorous use. Upgrade your firearm with the Geissele Automatics MK14, Super Modular Rail, Handguard, 9.3, M-LOK, Barrel Nut Wrench Sold Separately (GEI-02-243), Gas Block Not Included, Black 05-578B