Product Design

Lamprey91 | The ULTIMATE pocket clip for your 91mm SAK!

Elevate your 91 mm Swiss Army Knife EDC. Rapid secure attachment | no tools | no screws | ZERO knife modifications.

$71,959

pledged of $5,000 goal

1,382 backers

13 days to go

6 reward tiers

Back on Kickstarter ↗

About This Project

Lamprey91 is a patent‑pending, one‑piece aerospace‑grade stainless‑steel pocket clip engineered for all 91 mm Victorinox Swiss Army Knife models. Its wedge‑clip design locks onto the knife’s hidden rivets without screws, tools, or modifications, providing a secure attachment that can withstand over 25 lbs of pull force. The clip also integrates a 4 mm bit driver and a lanyard hole, while its heat‑treated construction ensures fatigue‑free pocket retention and corrosion resistance. Available in single, 3‑pack, 5‑pack, and limited Founders Edition versions, with an optional Blued Copper finish via stretch goal.

Key Highlights

 ▸ Ultra‑strong wedge‑clip attachment to hidden rivets – no tools, just slide, clip, and go. 

 ▸ Precision machined, heat‑treated aerospace‑grade stainless steel for fatigue‑free durability. 

 ▸ Integrated 4 mm bit driver and lanyard hole, compatible with all 91 mm Victorinox SAK models. 

Technical Specs

Spec	Details
Material	Aerospace‑grade heat‑treated stainless steel
Compatibility	All 91 mm Victorinox Swiss Army Knife models (hidden rivet)
Installation	No tools, wedge‑clip snap‑on
Retention Strength	Over 25 lbs pull‑test
Bit Driver	Integrated 4 mm driver (bits not included)
Lanyard Hole	Yes, fits 550 paracord
Finish Options	Standard; optional Blued Copper add‑on ($1)
Packaging	Recyclable paper card
Country of Origin	Made in USA (Tortoise Gear shop, California)
Patent Status	Patents Pending

Reward Tiers

26 backers

Lamprey91 | Founders Edition *LIMITED*

USD50

~$50 USD

Each unique piece is a beautifully crafted gold‑etched artwork with serial number 1‑100; a one‑of‑a‑kind masterpiece.

154 backers

Lamprey91 | Early Bird *LIMITED*

USD20

~$20 USD

33% off MSRP; ultimate factory‑like deep carry pocket clip for all 91 mm Victorinox SAKs – no tools, just slide, clip, and go.

4 backers

Lamprey91

USD25

~$25 USD

>16% off MSRP; ultimate factory‑like deep carry pocket clip for all 91 mm Victorinox SAKs – no tools, just slide, clip, and go.

32 backers

Lamprey91 | 3 Pack

USD65

~$65 USD

28% off MSRP; includes 3 clips for sharing or EDC use – no tools, just slide, clip, and go.

17 backers

Lamprey91 | 5 Pack

USD100

~$100 USD

33% off MSRP; includes 5 clips for sharing or EDC use – no tools, just slide, clip, and go.

50 backers

Lamprey91 | Super Early Bird *LIMITED*

USD15

~$15 USD

50% off MSRP for first 50 backers; ultimate factory‑like deep carry pocket clip for all 91 mm Victorinox SAKs – no tools, just slide, clip, and go.

Risks & Challenges

The main risk is scaling production: the clip requires custom tooling and precise heat‑treated stainless steel, which proved difficult for US contract manufacturers. If funding falls short, the team may need to seek overseas production or delay delivery. However, they have completed prototyping and have a plan to bring production in‑house once funded.