Description
Slick Side M4 Upper Receiver with Port Door – T marks
This M4 Mil-Spec Upper Receiver comes with the port door. These AR-15 uppers are precision machined from industry-leading 7075 T6 aircraft grade aluminum forgings and they come with the ejection port door already installed! We’ve included laser engraved T marks for ease of remounting optics and other Picatinny style attachments.
- M4 feedramps
- Machined from a Mil-Spec 7075 T6 forging
- Type III Hardcoat Anodized finish
- Laser-engraved T-marks
- Includes port door
- 100% Made in USA
Have us engrave your dust cover and/or upper receiver. Choose your graphics from the drop down menus.
See reference “CHART A” and “CHART B” tabs above.
PORT DOOR GRAPHIC ENGRAVING REFERENCE CHART
Have us engrave the dust cover that comes installed on this upper
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