Design & fabrication · Detroit, Michigan
Made-to-order parts,
printed in Detroit.
A one-person American small business designing and 3D printing durable, useful gear — built to take real-world abuse and shipped straight from Detroit.
- Made in Detroit
- 3D printed to order
- Ships from the USA
Shop
Grip Inserts
Store spare batteries and small parts inside your grip. Four models: CR2, CR123, Standard (bolt + firing pin + CR2032), and AR10.
$18
View product →
Funk Buster
Baking soda + activated charcoal deodorizer in a refillable screw-top container. Three sizes for fridges, cars, dorms, and RVs.
From $7
View product →
Tether Adapter for Petzl Grigri
Press-fit tether point for the 3rd-gen Petzl Grigri. Never drop your belay device again. 2-pack with cord.
$5
View product →
Carabiner Stays
Flexible 10-packs that keep carabiners from flipping on quickdraws and cams. Two sizes plus a rainbow cam-rack pack.
From $5
View product →
Dial Toggle Adapter for Fujifilm
Slips over the tiny mode-dial toggle and makes it easy to flip — even with gloves on. 4-pack.
$5
View product →
Helmet Mount
Curved glue-on base for GoPro-style action cameras, shaped to hug helmet shells. 3-pack with hardware.
$6
View product →
MOLLE Belt Adapter
Mount MOLLE pouches, holsters, and IFAKs on the everyday belt you already wear. Single or double column.
From $6
View product →About the shop
Detroit Prototype LLC is run by one maker in Detroit, Michigan. Each product is designed in-house and 3D printed to order — no overseas manufacturing, just dependable parts made a few at a time and shipped across the United States. Questions or a problem with an order? Email info@detroitprototype.com.
Need a part that doesn't exist yet — a custom version of one of our products, or an original design from your idea? Request custom work