Armaspec Arca Rail Features The Armaspec Arca Rail is machined from 6061-T6 aluminum a lightweight yet strong material that adds minimal bulk to a rifle build while still providing a rigid mounting platform. Its Mil Spec Type III hard coat anodized finish protects the rail from corrosion and wear keeping it functional through repeated mounting and dismounting of accessories. Designed to integrate directly with M-LOK equipped handguards the rail attaches securely using the handguard s existing slot pattern without requiring additional hardware or modification. This direct M-LOK compatibility makes installation straightforward for builders working on AR-15 or AR-10 platforms. Once installed the Arca Rail gives shooters a stable adaptable foundation for attaching a wide range of Arca-style accessories most notably bipods that rely on the Arca-Swiss quick detach interface. This compatibility allows for fast tool free adjustments when transitioning between shooting positions helping maintain control and accuracy during dynamic engagements. At just over 9 inches long and a fraction of a pound in weight the rail adds capability without meaningfully affecting the rifle s balance. Finished in Black the Armaspec Arca Rail is a versatile mounting solution for sale at GrabAGun. Armaspec Arca Rail Specifications Manufacturer: Armaspec Model: ARCA Rail 9 Slot M-LOK Color: Black Material: Aluminum Finish: Anodized Mount Type: M-LOK Length: 9 Height: 0.60 Width: 1.47 Compatible Hosts: AR-15 / AR-10 M-LOK Rails Weight: 0.155 lb Available At: GrabAGun