AeroTech RMS-54 54mm 標準前方クロージャー - 54FCC

Snagged this as a spare for my 54mm reloads and the machining is noticeably cleaner than the closure that came with my case. Fit is snug with no cross-threading, and it's held up fine across a handful of J and K flights so far.

Threads cleanly onto my 54mm hardware and seals tight on every reload I've run through it. The knurled outer ring gives you something to actually grip when you're torquing it down at the pad. No leaks, no burned O-rings after a dozen flights.

Snug fit on my 54mm RMS hardware with zero leakage on the last two flights. I've got several reload kits for this case and it swaps between them without any wobble. Machining quality looks great for the price.