Aero Precision M4E1 Assembled Upper X-Werks Midnight bronze AR15 M4
The M4E1 Threaded Upper Receiver features an angular machined design that helps it stand apart from standard mil-spec upper receivers. It is threaded to accept a standard AR-15 barrel nut and forged from 7075-T6 aluminum and precision machined to work with all mil-spec AR-15 parts. The M4E1 features a picatinny profile, M4 feed-ramps, and .250 take-down pin holes. This model has a black hardcoat anodized finish.
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Please allow 1-3 business days for items to ship once payment and FFL are received. Give us a call, stop by our shop, or email us with any questions! You can also purchase online anytime at www.x-werks.com!
FFL's can be emailed, faxed or mailed to us. Please reference your name and the item number to prevent any delays in shipping.
Long guns and accessories ship UPS Ground. Handguns are shipped USPS priority mail. Once payment and FFL are received we will email you a tracking/delivery confirmation number.
NO CREDIT CARD FEES!
Serial numbers will vary.