Aero Precision created a new forged receiver with the M4E1 Threaded Upper Receiver. Featuring a new angular machined design that helps it stand apart from standard mil-spec upper receivers, the M4E1 also uses a threaded set screw for retaining the forward assist. This makes assembly much easier than trying to drive a roll pin without all the proper tooling. A great upper for builders.
Threaded to accept a standard AR15 barrel nut, and forged from 7075-T6 Aluminum and precision machined to work with all mil-spec AR15 parts. Available in Anodized Black or Flat Dark Earth Cerakote finish.
Pair with an{{widget type="Magento\Catalog\Block\Product\Widget\Link" anchor_text="AR Gas Vent" title="AR Gas Vent" template="product/widget/link/link_inline.phtml" id_path="product/141"}} or Forward Assist, and a Port Door / {{widget type="Magento\Catalog\Block\Product\Widget\Link" anchor_text="Ejection Port" title="Ejection Port" template="product/widget/link/link_inline.phtml" id_path="product/2585"}}.
Features:
- Material: 7075-T6 Forged Aluminum
- Weight: 6.9oz
- Recommended Barrel Nut Torque: 50 ft-lbs
- New enhanced forging that gives the upper receiver a "billet look"
- New picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards
- M4 Feedramps
- .250 takedown pin holes
- Lazer engraved T-marks
- Includes port door and forward assist