AeroTech RMS-54 54mm 延長螺紋浮動前蓋 - 54FFCEPTS

The retaining ring fit snugly and the threads were clean right out of the package—no binding at all. This closure gives me confidence for my next L-class flight.

Threaded perfectly onto my RMS-54 case with no binding, and the retaining ring is a nice touch so I don't lose it in the field. Fit is snug and clean, exactly what I needed for my reloads.

Finally, a forward closure that threads on smoothly without any binding—the retaining ring is a nice bonus. I paired it with a 54mm reload and it fit perfectly. This is exactly what my high power build needed.