Build your dream rifle with this AR 15 Mil-Spec Upper Receiver that features a mid-length gas system and government profile 14.5in barrel. This Daniel Defense upper is an OpticsPlanet Exclusive, which means you won't find this exact build and color available anywhere else! These custom-built AR15 Upper Receivers are available with a DD extended flash suppressor attachment, and all uppers are crafted from anodized aluminum that is rugged, lightweight, and resistant to corrosion. These DD upper receivers feature M4 feed ramps for faster and easier reloading, and the M-LOK handguard offers plenty of secure mounting space for optics, laser sights, and other rifle accessories. Grab one of these OpticsPlanet Exclusive 14.5in Mil-Spec Custom AR Upper Receivers today to build a tougher, more reliable firearm for your range training, hunting, and home defense needs. Specifications for OpticsPlanet Exclusive Daniel Defense Custom Upper Receiver, 14.5 in, 1/7 Twist, Mil Spec: Manufacturer: Daniel Defense Cartridge: 5.56x45mm NATO Barrel Length: 14.5 in Barrel Profile: Government Gas System Length: Mid Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2x28 Finish: Anodized Color: Black/Brown Gun Model: AR-15 Condition: New Fabric/Material: Aluminum Attachment/Mount Type: M-LOK Handguard Length: 13.5 in Gun Make: AR Platform Included Accessories: Standard Barrel Material: 4150 Chrome Moly Vanadium Features of OpticsPlanet Exclusive Daniel Defense Custom Upper Receiver, 14.5 in, 1/7 Twist, Mil Spec: UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, 14.5? Government Profile, Mid-length Gas System, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel and Mil-Spec Heavy Phosphate Coating, Mid-length, Direct Impingement MUZZLE DEVICE: See additional features listed above BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key SIGHTS: Sold Separately HANDGUARD: Daniel Defense MFR 13.5in, CNC Machined of 6061-T6 Aluminum, M-LOK Attachment, Type III Hard Coat Anodized, Milspec+ Cerekote. CHARGING HANDLE: GRIP-N-RIP Charging Handle, Body CNC Machined of 7076-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized Package Contents: OpticsPlanet Exclusive Daniel Defense Opticsplanet Custom Upper Receiver, 14.5 in, 1/7 Twist, Mil Spec Daniel Defense Warranty: Guaranteed Satisfaction All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer's products. Warranty information and warranties are supplied solely by the manufacturer, and not this retailer. This retailer publishes information from the manufacturer for information purposes only, and the manufacturer is solely responsible and liable for any warranty information and warranties published by this retailer. Please reference the appropriate manufacturer documents or reach out to the manufacturer directly for full warranty terms and effective dates. @media screen and (max-width: 400px) { #w-block-one { display:table-row !important; } }