The Faxon Streamline carbon fiber handguard (brand part no. FFHGMLOK13C1) is a 13-inch M-LOK rail that combines Lancer Systems carbon fiber with Faxon engineering. It mounts with a standard AR-15 barrel nut, so it uses the tools and mounting system most builders already know. Faxon Firearms says the carbon fiber is 10 times stronger than aluminum and 40 percent lighter, aimed at competition and duty rifles. M-LOK slots on eight facets leave plenty of room for lights, lasers and grips.

Key Specifications

• Overall length is 13.3 inches, sold as the 13-inch Streamline.
• The attachment system is M-LOK across eight facets.
• Construction is Lancer carbon fiber and aerospace aluminum, with a Type III hard anodized finish.
• It mounts with a standard AR-15 barrel nut and a patent-pending clamp architecture.
• A steel AR-15 barrel nut and all mounting hardware come with it.
• The rail weighs 6.12 ounces without the barrel nut, including all mounting hardware; the steel barrel nut adds 1.28 ounces.
• The profile measures 1.98 inches flat to flat, with a front aluminum ring inside diameter of 1.70 inches.

Frequently Asked Questions

How does it attach? It attaches with a standard AR-15 barrel nut, and the steel barrel nut and all mounting hardware are included. Faxon says standard armorer wrenches and tools do the job.

Can I co-witness sights with it? Faxon notes that co-witnessing iron sights and optics or lasers requires optional low-profile M-LOK rail adapters, which are not included.

Does it get hot? Faxon lists low heat transfer as a feature, suited to extended duty cycles.

Buy the Faxon Streamline 13-Inch Carbon Fiber M-LOK Handguard

Cut weight from the front of your AR-15 with a rigid carbon fiber rail that mounts on the barrel nut you already use. Browse more AR handguards and order from our Lubbock, Texas gun shop for fast shipping.