Bad Attitude Forged M4 / A4 Upper Receiver
Retro Garbage Cat Grey Weathered Finish
********THERMAL FIT********
- CNC Machined from a 7075-T6 forging
- Mil-Spec Type Type 3 Class 2 anodizing
- Weathered finish for a well used look including worn anodizing and minor dings & scratches
- Lugs held to the high end of the spec to help with a snug lower fit - Generally .496" to .497"
- These are thermal fit receivers. You will need to heat the receiver in order to install your barrel
- Heat the receiver in an oven set at 250*. Install the barrel and let it cool to room temperature before you install the barrel nut
- GENTLY heat the front of the receiver with a propane torch or heat gun (not a hair dryer). Do not overheat the receiver. You need only to heat it slightly to install the barrel. Install the barrel quickly and let cool to room temperature before you install the barrel nut.
- Bad Attitude Department is not responsible and will not replace uppers damaged due to improper heating or installation. If you run in to a problem, let us know and we can help you out.
- M4 Feedramps
- Fits all standard Mil-Spec dimensioned components
- Custom engraving available
If added, T-Marks will be laser engraved in white or deep engraved. Deep engraving destroys the anodize and usually required color filling or refinishing.
For custom logos, please check our our BCG page for examples or email us first with your logo idea. Logos will only be placed on the top rear of the receiver, just above the charging handle. Deep engraving destroys all anodizing and usually requires a coating or color fill to protect the exposed aluminum.
- Anodize Color:
- Weathered Grey