Arms Room NCOIC / Unit Armorer Appointment Memorandum (ARMORER)

The Arms Room NCOIC / Unit Armorer appointment memorandum is an AR 25-50 compliant memorandum used to formally designate a Soldier or DA Civilian to serve as the unit's Arms Room NCOIC / Unit Armorer. It documents the appointee, references AR 190-11 (Physical Security of Arms, Ammunition, and Explosives), and is signed by the commander.

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Regulation reference

AR 190-11 — Physical Security of Arms, Ammunition, and Explosives (17 January 2024)

Citation: para 3-8l, 4-19

Proponent: G2

Grade requirement: NCO (E-5 or above) — recommended

Slots: Primary Arms Room NCOIC required

Memo type: MEMORANDUM FOR

When is the ARMORER memo needed?

Most Army units appoint a Arms Room NCOIC / Unit Armorer (ARMORER) when a new commander takes charge, when the previous appointee PCSes, ETSes, or is reassigned, or when the unit's mission set changes in a way that requires renewed appointment. The memo is also required for unit inspections — including CIP, CCIR, and command climate reviews — where the AR 190-11 program is evaluated.

The appointment memorandum is the foundational document that establishes the appointee's authority under AR 190-11. Without a current, signed appointment memo on file, the unit's Arms Room NCOIC / Unit Armorer program is non-compliant — even if the appointee has all required training certificates. Inspectors will look for: a signed memo with current date, a grade that meets NCO (E-5 or above) — recommended, and training/certification documents matching the appointee on the memo.

On EvalMe, the ARMORERmemo is one of 39 AR 25-50 templates that auto-cites the correct regulation, uses the proper format, and integrates with your unit's address book and signature blocks.

Required training for ARMORER

Unit Armorer Course

System: ATRRS (resident course)

Timing: Prior to or within 90 days of appointment

Frequency: One-time requirement

Armorer course available through ATRRS. Contact installation G3/S3 for scheduling. DA Form 7281-R (Command Oriented AA&E Security Screening and Evaluation Record) required for all personnel with arms room access.

Documentation required on file

Appointment orders signed by commander
Armorer course completion certificate
DA Form 7281-R completed for appointee
Roster of individuals with arms room access (posted inside arms room)

What inspectors look for

Inspector checks appointment memo, armorer certification, key and lock custodian appointment, and roster of personnel with accompanied/unaccompanied access posted inside arms room door.

Additional notes

Key and lock custodian appointment is a separate required memo — see Key and Lock Custodian entry.

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EvalMe drafts AR 25-50 compliant appointment memorandums with the correct regulation citation, address block, and signature line — free, no credit card.

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Other appointment memo types

KEY-LOCK — Key and Lock Custodian →PSO — Physical Security Officer →CSM-SEC — Command Security Manager →CLASS-CUST — Classified Document Custodian →UPL — Unit Prevention Leader →USO — Unit Safety Officer →OPSEC — OPSEC Officer / Program Manager →EOL — Equal Opportunity Leader →CBRN — CBRN Defense Officer and CBRN NCO →UMO — Unit Movement Officer →MAINT-O — Maintenance Officer →DISPATCH — Dispatcher →FST — Field Sanitation Team →FSO — Food Service Officer →UECO — Unit Environmental Compliance Officer →FEC — Facility Environmental Coordinator →PMC — Unit Self-Help Pest Management Coordinator →ATIS_TRAIN_ADMIN — ATIS Training Administrator (formerly DTMS Administrator) →HRH — Hand Receipt Holder / Primary Hand Receipt Holder →HAZ-CERT — Hazardous Cargo Certifier →URSO — Unit Radiation Safety Officer →ASO — Aviation Safety Officer →OIC-RSO — Range OIC and Range Safety Officer →CFR — Command Family Readiness Representative →GPC_CARDHOLDER — Government Purchase Card (GPC) Cardholder →UPAR — Unit Public Affairs Representative (UPAR) →SPPM — Suicide Prevention Program Manager (SPPM) →UVAO — Unit Voting Assistance Officer (UVAO) →ATO — Anti-terrorism Officer (ATO) →TRAINING_OFFICER — Training Officer / NCO →SHARP — SHARP — Sexual Harassment/Assault Response and Prevention Program →RECORDS_COORD — Records Coordinator / Records Manager / Records Administrator →MAIL_CLERK — Mail Clerk / Mail Orderly / Official Mail Manager →HPO — Hearing Program Officer (HPO) →FIRE_WARDEN — Fire Warden / Building Manager / Evacuation Coordinator →COMSEC_CUSTODIAN — COMSEC Custodian →ENERGY_MGR — Installation Energy Manager / Energy Conservation Officer →CRIME_PREV — Crime Prevention Officer / NCO →

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