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Mil Spec AR-15 stripped Upper Receiver is machined from a 7075 T6 Aluminum forging. Featuring M4 feed ramps, this upper receiver is machined to Military Specifications & Standards and can be used with multiple calibers on the AR-15 platform. Match this Upper with one of our Lower Receivers for a solid fit.
- Precision machined to correct Mil-Specs from 7075 T6 Forgings
- Upper Receiver Fully MIL-STD M4A4
- Mil-Std 1913 Rail for mounting optics and accessories
- Machined for use with barrels that use an M4 barrel extension
If this product requires an FFL to purchase, please have your preferred dealer email their FFL to FFL@sigwoarms.com and reference your name and order number so we may assign the FFL to the proper order. If this information is not submitted, shipping your order will be delayed. If you have non-FFL products in your cart during checkout, they will be shipped separately to an address of your choosing.
CAGE CODE
14AS3