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| USAF | Master At Arms | Navy |

| USAF | Master At Arms | Navy | #5901870

1
members (measured 12 Oct 2026, 18:56 UTC)
5 April 2020
created (per Roblox API)
10 August 2026
first measured by this register

Description

The Master at Arms' rating is the Navy's military police force. Master-at-Arms make sure the Navy's regulations are enforced. They provide the United States Navy with security specialists.

Written by the group; not a statement by this register.

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)MembersChange
28 Aug 2026, 13:481first reading

Ownership

Owned by @USAF_HoIder as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

@USAF_HoIder — Holder (rank 255)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Holder0
Senior Command0
[SECNAV] Secretary of the Navy0
[CNO] Chief of Naval Operations0
[NHC] Naval High Command0
[CO] Commanding Officer0
[XO] Executive Officer0
[SPCSO] Specialized Security Officer0
[SO] Security Officer0
[PSO] Probationary Security Officer0
Member1
[OIT] Officer in Training0
Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.