AeroTech RMS-54/1706 コンプリートモーターハードウェアセット (前方シールディスク付き) - 5417M

The forward seal disc fits perfectly and the threading on the aluminum case is clean, no burs. I've used it with two different reloads now and it's held up great at high pressure.

Finally got all the pieces I needed in one box instead of hunting around for closures and seals separately. The forward seal disc fit snug right out of the package, and the threads on the aluminum case were clean with no burrs. Took it apart and reassembled it twice just to be sure, and everything m

The aluminum case feels solidly machined and the threads are clean, making assembly with the forward closure straightforward. Worked perfectly with my reload kit on the first launch.