Upper receivers mount and house the barrel, handguard, and gas system in an AR-15 or LR-308/AR-10. Mil-Spec upper receivers are made to "military specification" which means they either match or exceed the military requirements imposed on the design. This receiver features a full-length 1913 Picatinny rail section on the top for mounting optics and iron sights a brass deflector and a standard forward assist section.
Brand: Aero Precision's roots are deeply tied to aerospace, and their drive for clean, perfect engineering and machining stems from that. When you're building something that will fly in the air, there is no margin for error. Aero Precision takes that same approach in the firearms industry. Not every manufacturer will have razor thin tolerance levels. Not every manufacturer will personally oversee the development, design, and machining of every part that comes off the line. Aero Precision is not every manufacturer.
About this Upper: Users looking for a completely custom build should take a look at this cosmetically blemished upper receiver. This*BLEM* Aero Precision AR-15 Stripped Upper Receiver features a standard 'Mil-Spec' design made from forged 7075-T6 Aircraft Grade Aluminum. This upper receiver is tough, and the anodized finish helps improve durability. It has a standard rifle cartridge-size ejection door. Made by Aero Precision, the Aero stripped upper is precision CNC machined and ready for your next build!
Material: 7075-T6 Aluminum - 7075-T6 Aluminum is a high strength alloy metal with great ductility, toughness, and resistance against fatigue. 7075-T6 was standardized for use in Aerospace equipment and aircraft. The Suffix T6 is a temperament treatment to increase the overall toughness and strength of the Aluminum. 7075-T6 Aluminum was chosen for the AR-15 platform for its ease of manufacturing, lightweight properties, and strength.
Style: Mil-Spec is the standard for the United States Military for reliability, commonality, reduced cost, and meeting the requirements of a service rifle. 'Mil-Spec' is the key technical requirement for military-unique materiel or substantially modified commercial items.
Finish: Anodized - This upper receiver is anodized, this process increases the thickness and hardness of the natural oxide layer on the surface of the metal parts. This increases the corrosion and wear resistance of the Upper Receiver.
Caliber Compatibility: Standard - This upper receiver will work with standard rifle cartridges such as .223 Remington ,5.56 NATO, .300 Blackout, 6.5 Grendel, 7.62x39, 9mm Luger, and .350 Legend. This will also work with 9mm Pistol Caliber Carbines.
Top Section: Flat Top Rail w/ T-Marks- This upper receiver features a full 1913 Picatinny rail for the additional Optics installation and Iron Sights, T-Marks will allow you to replace zeroed optics and have them retain zero by placing them in CNC marked rail sections. The T-Marks are painted in white.
Anti-Rotation Tab Compatibility: This upper receiver will allow the installation of handguards with anti-rotation tabs incorporated into their design.