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Posted: 3/14/2017 10:34:01 AM EDT
| Hi. Just bought my first new stripped upper billet receiver. Just curious how these come. This one came black coated outside only. Inside not black? And it came really dull looking like it was super dry. I have since soaked it with hopps 9 spray oil. It definitely brought the finish to life but oily. Is this normal for stripped uppers?...should I do something different?..thoughts please? |
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From the website above
Made from 7075-T6 aluminum billet and feature M4 style feed ramps. Inside is coated with dry film lube. Accepts standard upper receiver part and mil-spec lower receivers. Fit and function with your standard lower receiver. Hardcoat anodized matte black to mil-spec. |
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