Second Armor
A peer-to-peer tactical and military gear marketplace for Europe — built on Sharetribe with a React Native mobile app, custom design, referral system, and SendCloud shipping integration.
Demo
Project overview
Second Armor is a peer-to-peer marketplace for second-hand tactical and military gear, connecting buyers and sellers across Europe. The platform needed a fully custom design, a companion mobile app, and a set of powerful features to drive seller engagement, trust, and conversion — from referral incentives and pro seller profiles to flexible payment options and automated shipping.
We built the full platform on Sharetribe with a React Native mobile app, delivering a feature-rich marketplace in 4 to 6 weeks — launching with 500+ users and 300+ product listings.
The Challenges
Second Armor required a significant custom build on top of Sharetribe — covering design, mobile, payments, shipping, and seller engagement features that don't exist natively.
Custom design implementation — full frontend redesign replacing all default Sharetribe UI
React Native mobile app — a fully branded iOS and Android companion app for the marketplace
Referral system with invite codes — users can invite others using a personal invite code to grow the seller and buyer base
Username feature — pro seller profile URLs use a custom username instead of a system-generated ID for a professional, shareable profile link
Make an offer — buyers can submit custom offers on listings, giving sellers flexibility beyond fixed pricing
PayPal integration alongside Stripe Connect — giving sellers more payment options at checkout
Wishlist — buyers can save and track listings they're interested in
SendCloud shipping integration — automated shipping label generation and tracking for European orders
Our Approach
We started with a pixel-perfect custom design implementation — rebuilding the entire Sharetribe frontend to match the Second Armor brand. A React Native mobile app was built in parallel, giving buyers and sellers a native iOS and Android experience with full marketplace functionality.
The referral system was built with unique invite codes per user — incentivising organic growth by rewarding both the referrer and the new user. Username-based profile URLs were implemented for pro sellers, replacing Sharetribe's default ID-based URLs with clean, shareable profile links that build seller credibility.
The make an offer feature was added to give buyers and sellers a negotiation layer — buyers submit offers, sellers accept or decline, keeping transactions flexible. PayPal was integrated alongside Stripe Connect, expanding payment options for sellers across Europe. A wishlist was built for buyers to save and revisit listings, and SendCloud was connected for automated shipping label generation and real-time tracking across European carriers.
The Results
Delivered and live within 4 to 6 weeks
500+ users registered at launch
300+ product listings active on the platform
React Native mobile app live on iOS and Android
Referral system driving organic user growth
PayPal and Stripe Connect live as dual payment options
Automated European shipping via SendCloud
Tactical Gear Marketplace
Sharetribe
PayPal
SendCloud
Mobile App
Make an Offer
UI/UX
React Native
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