The Sig Sauer M400 Tread MLOK Sight Rail Kit with Screws & Nuts is designed to enhance the versatility and functionality of your M400 Tread rifle. This kit includes a sight rail that is compatible with MLOK handguards, allowing you to easily mount optics and other accessories. The included screws and nuts ensure a secure and straightforward installation. The sight rail is constructed from high-quality materials, providing durability and stability for your mounted accessories. The sleek design and black finish make it a perfect match for your M400 Tread rifle, enhancing both its performance and appearance. Sig Sauer M400 Tread MLOK Sight Rail Kit w/Screws & Nuts KIT-TRD-SIGHT-RAIL