علبة محرك ألمنيوم أيروتك RMS-54 54مم 2560 نيوتن-ثانية - 5425C

After testing with a few 5425 reloads, the fit is consistently snug and the anodizing shows no wear after assembly. This case handles the sustained burn without any warping or thread galling, which is exactly what I needed for my L-cert flight.

Machined the threads and the aluminum feels dense and precise—no wobble or slop when I torqued it down. Reloads drop in without fighting the case, and the anodizing held up fine on the first few launches. This is exactly what I needed for my 54mm high power setup, solid buy.

The threads are cleanly machined and the anodizing looks tough enough for multiple flights. Screwed together smoothly without any binding, which is always a relief.