علبة المحرك الألومنيوم AeroTech RMS-75 75 مم 3840 نيوتن-ثانية - 7538C

The case threads slid together perfectly with my reload kit, and the anodized finish feels tough enough for repeated flights. First assembly took me under five minutes.

Machined really smooth, no sharp edges or burrs on the threads, and the anodizing looks like it'll hold up to a few hard flights. The case takes the 7538C reloads without any wobble, and assembly is straightforward. Definitely the centerpiece of my 75mm setup now.

Fits the 7538C reload kits exactly as expected—no filing or fiddling to get the liner seated. The anodizing took a few scratches on first assembly, but the threads stayed smooth and the case held together flawlessly through its first flight.