Strength & Looks of "Billet," Easy Parts Compatibility of "Mil-Spec"
Aero Precision’s M4E1 Threaded Stripped Upper Receiver is ready to serve as the core of your next custom AR-15 project. It combines the benefits of Aero’s M4E1 Enhanced Upper with threads up front to accept a standard AR-15 barrel nut and handguard attachment, for those who prefer to build a rifle with a different handguard from Aero’s Gen 2 Enhanced or Atlas ’guards.
The M4E1 Threaded Stripped Upper Receiver is forged from 7075 T6 aluminum, like a regular mil-spec receiver, but with angular external contours that add the strength - and custom look - of a "billet" receiver. The good news: parts compatibility is "mil spec" all the way. The Aero Precision M4E1 Threaded Stripped Upper Receiver accepts any mil-spec AR-15 bolt/carrier group (not included) and fits on a standard AR-15 lower.
- 7075 T6 aluminum forging, final machined to accept standard AR-15 parts
- Hardcoat anodized finish, matte black
- M4-type feed ramps
- .250" takedown pin holes
- "Stripped" = forward assist & ejection port cover NOT included
The Aero Precision M4E1 Threaded Stripped Upper Receiver comes with laser-engraved T marks on the Picatinny top rail. It gives you that badass "billet look" and robustness at a fraction of the price. And of course, it looks darned good paired up with Aero’s rugged-looking, all-business M4E1 lower receiver.
Big Book Catalog, Issue:71, Page:001
Fully Adjustable, Finest Quality For A Light, Reliable Trigger Pull
Self-contained replacement trigger module provides outstanding reliability, function, and performance for benchrest, varminting, and other types of precision shooting. All internal components are CNC machined from stainless steel, then heat-treated to Rc 58 for extended service life. Adjustment screws are fitted with a nylon insert to maintain your trigger settings without using thread locking compounds. Single-stage design is three-way externally adjustable, eliminating the need to remove the barreled action from the stock to set pull weight, let-off, or overtravel. Remington Hunter Varmint Rifle (RHVR) includes top lever safety and bottom bolt release. Fits Remington 700/40x rifles, right-hand actions only. Remington Bench Rest (BR) is designed exclusively for match shooting, and includes no safety or bolt release.Fits Remington 700/40x rifles, right-hand and left-hand actions. Winchester Hunter Varmint Rifle (WHVR) fits both Pre- and Post ‘64 Winchester M70 rifles, right- and left-hand actions which were manufactured in New Haven CT. It WILL NOT fit the MOA trigger group rifles made since 2008. Uses existing safety.
Big Book Catalog, Issue:71, Page:165
Sinclair, Issue:5B, Page:256
SPECS: Internal Components - 440 stainless steel, hardened to Rc 58. Housing - 300 Series stainless steel sheet, .050” (1.2mm) thick. HVR - 1.5 oz. to 48 oz. pull weight, fits right-hand rifles only. BR - 1.5 oz. to 3 oz. pull weight, fits right- or left-hand rifles. WHVR - 1.5 oz. to 48 oz. pull weight, fits both right- and left-hand actions. Installation instructions included.