TacFire 2-Piece Drop-In Quad Rail Features The TacFire 2-Piece Drop-In Quad Rail replaces a standard AR-15 handguard with full length Picatinny rail sections on the top bottom and both sides giving the shooter mounting space for lights lasers grips and other accessories. Machined from 6061-T6 aircraft-grade aluminum the rail is built to handle the stress of mounted accessories without flexing or loosening over time. A Type III hard-coat anodized finish in black adds corrosion resistance and a durable exterior that holds up to hard use in the field or at the range. At 11.5 ounces the quad rail is light enough that it will not noticeably add to the balance of the rifle even with the additional rail surfaces. The two-piece design is built specifically for drop-in installation clamping around the barrel nut without requiring the removal or replacement of the factory barrel nut in most configurations. This keeps installation straightforward for a home builder without specialized armorer s tools. A 7 inch length is a practical middle ground giving enough rail space for common accessories like a foregrip or sling mount without extending unnecessarily far down the barrel. For AR-15 owners looking for an affordable way to add real accessory mounting capability to their rifle this quad rail is a simple and effective upgrade. TacFire 2-Piece Drop-In Quad Rail Specifications Manufacturer: TacFire Model: 2-Piece Drop-In Quad Rail Compatible Hosts: AR-15 Material: 6061-T6 Aluminum Finish: Type III Hard-Coat Anodized Color: Black Weight: 11.5 oz Available At: GrabAGun