The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed.
The M4E1 Threaded Upper Receiver is designed to pair perfectly with the new M4E1 Lower Receiver, giving you a billet looking receiver set at a fraction of the billet price.
New enhanced forging that gives the upper receiver a "billet look"
New picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards
.250 takedown pin holes
Includes port door and forward assist
M4E1 Threaded Upper Receiver in Anodized Black
Port Door and Forward Assist installed
Please note: If the listing says "In-Stock" it means we have the item(s) in stock. Please check this LINK to view our most up to date shipping status. Warranty, Returns & Terms: MMC Armory offers a 30 day return, refund and exchange policy. You must email or call MMC Armory and obtain an RMA number prior to any return, refund, or exchange. All returns must include the original order number, receipt or invoice, along with the customers billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns, refunds, and exchanges may take up to two weeks, not including transit times, for processing after we have received return product. Return shipping costs will be the responsibility of the returning party, with the exception of the wrong item being received or on warranty exchange during the first 30 days after delivery. Items returned for warranty will only be replaced or exchanged, no refund given on warranty items.