[7][8][4] Serbu Firearms is also noted for its now discontinued production of the Super-Shorty, a compact 12 or 20 gauge pump-action shotgun with front and rear pistol grips.

[11][12][13] On April 9 2021, firearms YouTuber Scott DeShields Jr., known for his channel Kentucky Ballistics, suffered critical injuries while recording a video shooting the model RN-50 rifle using old .50 BMG SLAP rounds.

The gun exploded as DeShields fired the last round, sending shrapnel into his face and torso, lacerating his jugular vein, breaking his nose and puncturing his right lung.

He went through extensive emergency surgery at the Vanderbilt University Medical Center and was discharged after eight days, referring to the malfunction as a "freak accident" and blaming it on a faulty cartridge.

[14][15][16] Mark Serbu released a video statement on the incident in his YouTube channel, to "assure people that the RN-50 is a safe gun", saying "It's a terrible thing.