Watch GT, CL first.
Marine Corps MOS guide
4421 Legal Support Specialist ASVAB score requirements
Score target and study focus for Marine Corps 4421.
4421
Marine Corps MOS score brief
Legal Support Specialist
ASVAB line score targetGT 105+ and CL 110+
Supports Marine Corps administration, finance, legal, media, public affairs, or command communication work. This MOS is in the Legal Services field; use the guide to connect its score target with the right ASVAB subjects.
Legal Support Specialist can fit students who want a Marine Corps role in legal services and are ready to verify current contract options with a recruiter.
Technical, operations, logistics, security, aviation, public-service, or administrative paths depending on the MOS field.
Study first
Focus these areas
- Build word knowledge, paragraph comprehension, arithmetic reasoning, mechanical comprehension before comparing this MOS against your score report.
- Keep AFQT inputs stable while you raise the Marine Corps line-score areas tied to this role.
Daily work
What you may do
- Work on legal support specialist duties in the Marine Corps legal services field.
- Follow unit procedures, equipment standards, reporting routines, and mission-readiness checks tied to the MOS.
4421 Marine Corps MOS FAQ
Common Legal Support Specialist ASVAB questions
What ASVAB score do you need for Marine Corps 4421 Legal Support Specialist?
GT 105+ and CL 110+ is the planning target shown on this MeritMarch guide. Treat it as study guidance, not a contract promise, because Marine Corps MOS access, openings, waivers, medical qualification, and recruiter guidance can change.
What does a Marine Corps 4421 Legal Support Specialist do?
Supports Marine Corps administration, finance, legal, media, public affairs, or command communication work. This MOS is in the Legal Services field; use the guide to connect its score target with the right ASVAB subjects.
Which ASVAB sections should I study for 4421?
Start with the subjects behind GT 105+ and CL 110+: Word Knowledge, Paragraph Comprehension, Arithmetic Reasoning, Mechanical Comprehension, Math Knowledge. If your AFQT is not stable yet, keep Arithmetic Reasoning, Math Knowledge, Word Knowledge, and Paragraph Comprehension in the plan too.
Is 4421 guaranteed if I meet the score target?
No. ASVAB line scores are only part of Marine Corps MOS access. Current openings, contract options, medical standards, citizenship, security screening, waivers, and Marine Corps needs can all affect availability.
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Sources and official confirmation
Line-score target shown on this page: GT 105+ and CL 110+. Current Marine Corps MOS access still depends on official policy, openings, medical qualification, background screening, waivers, citizenship, and recruiter guidance.
Sources reviewed May 9, 2026: Marines MOS fields, Marine Corps FY26 MOS Manual NAVMC 1200.1L, Marines general requirements, Operation Military Kids Marine Corps MOS ASVAB table.