Surveillance video captured the suspect carrying the weapon near the 3000 block of West Cumberland Street back on July 31st.
At one point, police say he actually fired the rifle at the ground.
The suspect is described as a black male, full beard, wearing a white shirt with purple stripes, light colored cargo shorts, and yellow sneakers.
If you recognize the man, contact police.
To submit a tip via telephone, dial 215.686.TIPS (8477) or text a tip to PPD TIP or 773847. Use this electronic form to submit a tip anonymously.
All tips will be confidential.