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Setup Video | What’s Included | Specs | Sizing Chart | Pictures | FAQ | Related Info

Body armor and plate carriers are nothing new but the demand for them has never been higher. Citizens of all walks of life are turning to body armor as a measure of preparedness in these troubled times. To meet the needs of our fellow citizens and our high standards for an armor carrier, we’ve resolved to create and supply our own. Thus, the T.REX ARMS AC1.

The AC1 comes preassembled, ready to roll right out of the box as a slick plate carrier, complete with front and rear plate bags, padded shoulder straps, two buckles for attaching a placard, and an elastic cummerbund with small, medium, and large pouches.

To carry additional equipment or front-loaded magazines, you’ll need to purchase a shingle, chassis, or mag pouch and attach it to either the buckles or velcro on the front plate bag. The AC1 is compatible with most of the popular mag pouches on the market.

Do you have feedback on how your plates fit in the AC1? You can fill out the following form to help other customers: AC1 Plate Fit Feedback

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The AC1 consists of: Front and rear plate bags, padded shoulder straps, two buckles for attaching a placard, and an elastic cummerbund with six pouches of varied sizes.

The AC1 does not include armor plates.

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Sizing for plate carriers is based on the size of your plates, not your body. (It is the plates that should be based on the size of your body.) To choose the correct plate carrier size, use the sizing chart below and watch the setup video above.

All cummerbunds are the same length and height and should work for the vast majority of individuals. However, if you’re worried about being too small or too large to wear a plate carrier, measure your torso circumference (the solar plexus is a good location from which to measure) and consult the following data:

Min. Torso Cir.Max. Torso Cir.
Small AC130″56″
Medium AC132″58″
Large AC134″60″

Each cummerbund is 4″ high and has six pouches total: Two 2.5″ pouches; Two 3″ pouches; Two 4″ pouches.

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If you are running 10″x12″ Hesco L210s, you will want the Medium AC1.

Also note: The Medium AC1 will NOT fit Multicurve 10×12 plates like the Hesco M210.

If you have any questions about this chart or fitment, please reach out to us at [email protected].
AC1 Small
AC1 MediumAC1 Large
SAPI / ESAPI Cut Multi Curve Plates

Small (8.75″ x 11.75″)
Small Hesco 3810
(Max. Thickness: 1.1″)
Medium (9.5″ x 12.5″)
(Max. Thickness: 1.1″)
Medium Hesco 3810
Hoplite Medium 26149
(Hoplite MultiCurve Max Thickness .75″)
Large (10.25″ x 13.25″)
RMA 1155 (10″ x 12″)

Hesco M210 (10.25×13.25)
Special Threat / Swimmer Plates
< 8.75″ x 11.75″
(Max. Thickness: 1.1″)
< 9.5″ x 12.5″
10×12 Hesco L210
< 10.25″ x 13.25″
Hesco M210 (10×12)
Steel Plates
(May require backer / soft armor)
8″ x 10″
(Max. Thickness: 1.1″)
10″ x 12″ – Single Curve
(Max. Thickness: .8″)
10″ x 13″ – Single Curve
(Max. Thickness: .8″)
(Some plate exposed.)
10″ X 13″
11″ X 14″

(Some plate exposed)
10″ X 12″

(Multicurve Steel)
Generic / Single Curve Plates
Level 3 & 4

8″ x 10″
(Max. Thickness: 1.1″)
10″ x 12″
(Max. Thickness: .8″)
10″ x 13″

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What size plate carrier should I get?
Begin with the end in mind. The point of body armor is to protect your vital organs. So, start there. Size your armor plates to your body and then size your plate carrier to your plates. You can use Hesco’s Hard Armor Fitting Guide to determine what size plates you need to cover your vital organs. (You can get a good idea of what size plates you need by measuring nipple to nipple and clavicle to a few inches above your belly button.)
What type of plates should I get?
Will my plates fit in the AC1?
If you’re wondering about plate compatibility, email us at [email protected] with the specs of your plates and we’ll do our best to figure out if they would work in our AC1.
Can I wear SAPI side plates with this carrier? What about adding a back panel?
The AC1 was designed to be a slick, low-profile, lightweight plate carrier. If you’d like recommendations for a load-bearing plate carrier, you can reach out to us at [email protected].

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What Size Plates Do I Need? – Help – T.REX ARMS

What Size Plate Carrier Do I Need? – Help – T.REX ARMS

Adjusting AC1 Shoulder Straps – Video – T.REX ARMS

Are T.REX ARMS Nylon Products Covered Under Warranty? – Help – T.REX ARMS

If you’re interested, you can read about the complicated history surrounding getting a steady supply of T.REX ARMS AC1s here: (2021) T.REX ARMS Inc. v. IB Design, LLC and John Lawton – T.REX ARMS

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