If you can legally purchase a gun it would be stupid to buy a hot gun that might be tied to a crime or even put yourself in the situation where you are violating federal and state law.
Calm down and keep looking for the proper channels to buy.
That said you live in Maryland, so you are going to be fukked because of your state, northeast gonna have you at a disadvantage, outside of Pa, NH,VT, and ME
Gun laws in Maryland - Wikipedia
Laws prohibiting firearms
On April 4, 2013, the Maryland General Assembly approved legislation imposing significant new restrictions on gun ownership. The bills ban the sale of certain semi-automatic firearms that they define as assault weapons, limit magazine capacity to ten rounds, require that handgun purchasers be fingerprinted and pass a training class in order to obtain a handgun license, and bar persons who have been involuntarily committed to a mental health institution from possessing firearms.
Martin O'Malley Governor at the time, signed the legislation into law on May 16, 2013.
[13] Regarding ten round magazine limits for rifles purchased in Maryland, 'standard' 30 round magazines may be purchased outside Maryland and brought into the state for personal use. Those standard magazines may not be transferred, given, sold or manufactured inside Maryland.
[14]
As of October 1, 2013, detachable magazines for semi-automatic handguns and semi-automatic centerfire rifles which are capable of holding more than 10 rounds may not be purchased, manufactured or sold, though they may be possessed (but not transferred within the state) by persons who already owned them prior to enactment of the 2013 changes. Magazines greater than ten (10) rounds may be purchased or acquired outside the state and carried into Maryland and used within the state. Certain pistols are classified as "assault pistols", and banned from ownership if not registered prior to August 1, 1994.
[2] Only handguns on the official handgun roster
[15] may be sold in the state. Private sales of "regulated firearms," which includes handguns, are permissible, but must be done at a local Maryland State Police barracks. As of 1 Oct, a Handgun Qualification License (HQL) is required for the sale, as well as a background check and a mandatory seven-day waiting period. A person must obtain a safety training certificate prior to purchasing "regulated firearms" and present that certificate prior to each purchase. With some limited exceptions,
[16] only one "regulated firearm" may be purchased in any 30-day period. Handguns manufactured on or before December 31, 2002 must be sold or transferred with an external safety lock. Handguns manufactured after December 31, 2002 may only be sold or transferred if they have an internal mechanical safety device.
[3][4]
Firearms advocates challenged the 2013 law. The District Court ruled that the law was constitutional based on
intermediate scrutiny. On February 1, 2016, the
United States Court of Appeals for the Fourth Circuit overruled the reasoning used to uphold the law in a 2-to-1 vote. The appellate court said that the ban on semi-automatic weapons and high-capacity magazines should be subject to
strict scrutiny, not intermediate scrutiny, because they "are in common use by law-abiding citizens." The court acknowledged that the state has a right to limit the use of or ban citizen possession, sale, or transfer of "dangerous and unusual" weapons (such as hand grenades), but the weapons and ammunition barred by the 2013 law did not fall under that provision. The appellate court remanded the case to a federal district court, leaving the ban temporarily in place pending a review by the district court. The state said it would appeal the decision.
[17][18] On March 4, 2016, Fourth Circuit agreed to rehear the case
en banc and oral arguments took place on May 11, 2016.
[19][20]
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Thats your state's law, you have to pick guns that meet your states criteria to be sold. If you really want a gun but hate your state law, you have to move out of that state, might want to think about moving to VA.