Stern Defense SD MOD5 M-lok Handguards 8in Black 002-SD HG8 MOD5-M. This rail by Stern Defense utilizes M-LOK technology and features the "Insert now Attach Later" feature. The benefits of a short rail are that you get a very slim profile and greater control of your AR based rifle. With this shorty rail you also get a very low profile and allow the barrel to extend out so that it doesn't hit rail at an uncomfortable angle. A low profile is great for a CQB scenario where you can keep you hands occupied instead of fumbling with a hot barrel or having an attachment laying around that is awkward to operate. For a great way to make sure you are working with one of the best free float forends the AR shooting industry has to offer choose the Stern Defense SD M-LOK Handguard Rail. Specifications for Stern Defense SD MOD5 M-Lok Handguards: Manufacturer: Stern Defense Color: Black Finish: 6061 aircraft grade aluminum Fabric/Material: Hard-coat Anodized Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Gun Rail: M-LOK Condition: New Included Accessories: Standard Quantity: 1 Features of Stern Defense SD MOD5 M-Lok Handguards 6061 aircraft grade aluminum. Hard-coat anodized. Sturdy construction. Light weight construction. Length 15 inches. Smallest inside diameter 1.435 inches. Package Contents: Stern Defense SD MOD5 M-Lok Handguards Stern Defense 002-SD HG8 MOD5-M: SD MOD5 M-lok Handguards 8in Black 002-SD HG8 MOD5-M Black