The PTR 51P PDW is Back
This video details the return of the PTR 51P PDW after experiencing significant reliability issues. The primary cause was identified as an incorrect locking piece (70-degree instead of 55-degree) intended for a standard MP5 barrel being used in a .308 caliber firearm. PTR Industries replaced the serialized upper receiver and provided a new hammer, returning the firearm to factory configuration. Chronograph testing showed the 8-inch barrel .308 achieved around 1800 FPS with 145-grain Wolf ammunition, a reasonable but not exceptional velocity for the caliber and barrel length. The reviewer notes the firearm is now functioning flawlessly but plans to sell it due to its impracticality, suggesting a PTR-9KT or a full-size .308 rifle as more practical alternatives.













