On a 51.35 piston. CNC barrel.
Barrel looks to be in good condition with marking or damage. No overheating marking to con rod. Run time is unknown.
Comes as pictured.
All used parts are graded based on condition to give you a better idea of what you are purchasing and helps you compare from part to part. Grading is as follows;
Grade 1 - Very good condition. Item like new with minimal signs of use.
Grade 2 - Good used condition. Item will have signs of use but no heavy wear.
Grade 3 - Acceptable used condition. Item will have heavier signs of use but is still in a usable state.
Grade 4 - Item has heavy signs of use and wear. May require repair or adjustment.