The Story Behind 0331
In the Marine Corps, 0331 isn't a number you choose. It's the MOS you're assigned — Machine Gunner. The one who humps the gun, the tripod, the spare barrel and the ammo, then sets in and puts rounds downrange until the problem stops. Belt fed. Air cooled. Never quiet.
This one isn't a generic flag tee with a number slapped on it. It was drawn for the men who actually carried the weight — and for the families who know exactly what that number means.
What's On The Shirt
- Left chest: the 0331 designation under "Belt Fed. Air Cooled." — the M240's calling card, printed small and subdued. If you know, you know.
- Full back: a gun team moving through the smoke — gunner forward with the weapon, A-gunner behind him carrying the ammo. Nobody does this job alone.
- Back callouts: "Sustained fire. Sustained impact." and "Trained to employ. Built to endure. Brothers forever."
- Script accent: "We carried the weight." Past tense on purpose. Someone always did.
- Sleeve: a subdued American flag.
Who this is for: 0331s past and present, machine gun section vets, A-gunners who still remember the weight of a full can, and the wives, husbands, parents and kids buying for one.
Premium Isn’t Added — It’s Built Into Every Fiber.
Not just another patriotic tee. This shirt is built to feel perfectly lived-in, fit comfortably, and outlast the rest.
Crafted from heavyweight 6.1 oz., 100% ring-spun cotton and authentically garment-dyed, it delivers that incredibly soft, broken-in feel the very first time you put it on. The classic, relaxed cut drapes effortlessly across the chest and shoulders, giving you a substantial, structured silhouette without feeling restrictive. It’s rugged enough to handle hard work, yet comfortable enough to live in.
The patriotism speaks for itself. No cheap feel. No flimsy fabric. No tight, clingy fit. Just a heavy-duty, premium tee built for men who care about what they wear — and what it stands for.
The Details
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Color: Available in Military Green, Black, Brown, and Graphite.
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Pattern: Graphic print (0331 Machine Gunner design) on a solid-color tee.
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Material: Heavyweight 6.1 oz. (100% ring-spun cotton), pre-shrunk and garment-dyed for a vintage look and ultimate, lasting softness.
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Construction: Seamless tubular body with double-needle stitching on the armholes, sleeves, and bottom hem for unmatched durability.
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Durability: Twill-taped neck and shoulders to lock in its shape, wash after wash.
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Collar: Sturdy 7/8" double-needle topstitched collar that stays flat and won't stretch out.
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Comfort: Signature Comfort Colors twill label for a classic, high-quality finish.
Fit & Sizing
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Style: Classic, relaxed fit.
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Sizing: True to size for a comfortable, everyday look. (Pro tip: Size up if you prefer a more streetwear-inspired, oversized drape).
Built heavier. Worn perfectly. Made to represent.
