UTG PRO Arwen M-LOK Free Float handguard, Matte Black Hard Coat Anodized 6061-T6 Aluminum, 13 Total M-LOK Slots, Full-length Top Rail, Lightening Cut, Anti-rotation Tabs, For Left or Right Handed Mil-spec Receivers, Patent-Pending Steel Barrel Nut Requires No Timing

Features/Specifications:

Precision Machined from 6061-T6 Aluminum and finished in a Matte Black Hard Coat Anodization

Features 30/15/24/6 M-LOK Slots Across 3 Slot Tracks for Mounting Accessories with an Additional 4 Slots at the Front Along the 45 Degree Tracks

43/24/38/11/21 Slot Full-length Top Picatinny Rail Flush and Continuous with Upper Receiver

Ergonomic Octagonal Profile with Thoroughly Machined Lightening Cuts

Integral Anti-rotation Tabs Accurately Aligns Upper Receiver and Prevents Handguard Rotation and Flex

Patent-pending Steel Barrel Nut Requires no Timing of the Gas Tube or its Installation Screws

Compatible with Left or Right Handed Mil-spec Upper Receivers

Compatible with Standard Mil-spec. Forged AR15 Upper Receivers, Compatibility with Billet Upper Receivers is Not Guaranteed, Barrel Nut Fits Over Barrel Diameters up to 1.05in

Actual Length from Flush with Receiver to Furthest End of Handguard, 17.25/9.75/15.25/4.75/13.75in