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Mustang Survival Re-Arm Kit K (MA4041) retail box showing use with MD4041 and MD4042, one 17 gram CO2 cylinder and one bobbin
Image: Mustang Survival

Mustang Survival Re-Arm Kit K, 17 g

Brand:
Mustang Survival
Part no:
MA4041-0-0-101

Mustang's rearm kit for the MIT 70 models MD4041 and MD4042: one 17 g CO2 cylinder and one automatic bobbin, used on the MD4042 only. Match the kit to the model number on the jacket's label — the older MIT 70, MD4031, takes a different kit (MA4031). An inflatable must be rearmed after every inflation; under 33 CFR 175.23 it counts toward the life jackets a boat must carry only when properly armed with a full cylinder, unless it is worn inflated.

Our take

Buy this if you own a Mustang MIT 70 MD4041 or MD4042 and need to re-arm after a deployment. The maker states that fit, and the kit comes with a 17 g cylinder, an automatic bobbin for the MD4042 and a re-arming manual. The bobbin suits only the MD4042, so a manual-only vest gains nothing from it. Match the kit to your model number first, and know that the inflatable counts as required gear only when armed with a full cartridge, unless you wear it inflated.

Where to buy

Specifications

CO2 cylinder
17 g

Sources