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Product Discontinued by Manufacturer
Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Upper Receiver has been discontinued by Aero Precision and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!
ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.
Product Info for Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Upper Receiver
Easily install this Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Upper Receiver for unmatched performance and precision when taking down targets at the range. These AR15 Upper Receivers were crafted by Aero Precision, but you can only get these specific ones right here at OpticsPlanet. Beyond exclusivity, every upper boasts impressive features like the 6061 T6 aluminum Gen 2 Enhanced Handguard that's rugged, lightweight and has milled surfaces to improve your grip in any conditions. The Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Assembled Upper Receiver contains a 416R stainless steel barrel that boasts an incredibly long service life and undeniable performance in the field. For high quality parts that will greatly assist your shot game, trust the Optics Planet Exclusive Aero Precision M5E1 18in .308 Stainless Steel Complete Upper Receiver.![]()
Features of Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Upper Receiver:
- M5E1 Upper Features:
- Forged from 7075 T6 aluminum
- Precision machined to our specs
- M4 feedramps
- Laser engraved T-marks (Anodized only)
- .2795in takedown pin holes
- Accepts standard AR .308 components
- Comes with forward assist and port door installed
- Handguard mounting platform is forged into the receiver
- Gen 2 Enhanced Handguard Features:
- Added quick disconnect sling socket at the 3, 6 and 9 o'clock positions
- Milled additional surfaces along flats to aid with gripping and add visual appeal
- New profile of the Picatinny Top Rail
- 1pc free float design
- Rail is Machined from 6061-T6 Aluminum
- Built in Anti-Rotation tabs
- Scalloped rails
- Continuous top rail
- 1.78in inside diameter fits most muzzle devices and 1.5in suppressors
- Compatible with low profile gas blocks
- 18in .308 Stainless Steel Barrel Features:
- Twist: 1 in 10
- Threading: 5/8 x 24
- Material: 416R Stainless Steel
- Finish: Bead Blasted
- Gas Block Journal: .750in
- Gas System Length: Rifle
- Weight: 51.20oz
- DPMS Barrel Extension
- HP and MPI Tested
Package Contents:
- Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Upper Receiver
- Gen 2 Enhanced Handguard of choice
- 18in .308 Rifle Length Stainless Steel Barrel
- Low Profile Gas Block and Rifle Length Gas Tube
Ammunition




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Optics Planet Exclusive Aero Precision M5E1 18in .308 SS Complete Upper Receiver Unavailable & Discontinued Models
List of Unorderable Models
- Aero Precision M5E1 Complete Upper, 18in .308 SS Rifle Barrel, EM-15 Handguard, Anodized W/BCG/CH, Black, APAR950000 , MPN: APAR950000 , UPC: 815421028195 , Code: 29D-UFH-M5E18-APAR950000



































































































































































































