Perfect Fit Firearms · Hand-Scan App

Precision Perfected

Hand-measurement SaaS for shops: XR scanning, AI fit recommendations, and integrated POS.

SaaS hand-measurement software for firearm shops, where comfort, accuracy, and safety come together seamlessly. With XR-driven hand scanning and AI best-fit recommendations, your perfect firearm fit is just a scan away.

Advance Scanner
iOS · Android
POS & NMI Payments
AI Recommendations

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Advance ScanneriOS · Android

XR: Hand scan
AI: Best-fit
POS: + NMI pay

XRHand scan

AIBest-fit

One platform to scan, recommend, sell & manage every branch, built and shipped by Exarth.

XRHand scan

AIBest-fit matches

NMIIntegrated payments

App Store+ Google Play

Overview

First Line DefenseApp Store · Google Play

AI hand scanning meets retail POS

AI hand scanning and best-fit recommendations with integrated POS, branch management, and NMI payments.

XR hand scan
Best-fit matches
POS & NMI

1Scan the handwith the XR advance scanner.
2Match the fitwith AI firearm recommendations.
3Sell & managevia integrated POS & branches.

XR hand scanningThe advance scanner captures grip length, trigger reach & hand dimensions for accurate fit.
AI recommendationsPersonalized handgun matches from each customer's scan for faster, more confident consults.
Integrated POSProcess sales, track inventory & accept NMI payments, all tied to scan results & orders.

View on the App Store Get it on Google Play

Overview

AI hand scanning meets retail POS

A complete business solution for firearm retailers: AI-powered hand scanning and best-fit recommendations, paired with an integrated POS, branch & staff management, and NMI credit-card processing, all in one SaaS platform.

XR hand scan
Best-fit matches
POS & NMI

1Scan the hand with the XR advance scanner.
2Match the fit with AI firearm recommendations.
3Sell & manage via integrated POS & branches.

View on the App Store Get it on Google Play

Scan to fit

NMI payments

Retail toolkit

XR hand scanningThe advance scanner captures grip length, trigger reach & hand dimensions for accurate fit.

AI recommendationsPersonalized handgun matches from each customer's scan for faster, more confident consults.

Integrated POSProcess sales, track inventory & accept NMI payments, all tied to scan results & orders.

Challenge & solution

From guesswork to precision

XR

Precise hand scanning

1

All-in-one retail platform

The challenge

The Challenge

Guesswork-based firearm fitting
Poor fit affecting comfort & safety
Fragmented sales & inventory ops

The solution

The Solution

AI-powered hand measurement
Personalized firearm recommendations
Integrated POS & branch management

Hand Scan
AI Match
POS
Branches

Challenge & solution

From guesswork to precision

XR

Precise hand scanning

1

All-in-one retail platform

The challenge

The Challenge

Firearm shops rely on traditional fitting methods built on guesswork and trial-and-error. Without precise hand measurements, customers end up with firearms that don't fit, compromising comfort, accuracy, and safety, while fragmented sales, inventory, and multi-location ops add another layer of complexity.

Guesswork-based firearm fitting
Poor fit affecting comfort & safety
Fragmented sales & inventory ops

Guesswork fitsManual sizingNo scan dataSiloed ops

Fitting

Trial & error

Fit data

Disconnected

Operations

Split systems

0Scan data
HighReturn risk
SplitSystems

Disconnected tools · No precise fit data

The solution

The Solution

First Line Defense revolutionizes firearm retail with AI-powered hand measurement. The XR-driven advance scanner delivers precise hand scans and best-fit recommendations tailored to each customer, paired with a powerful POS, branch & staff management, and integrated NMI processing in one SaaS platform.

AI-powered hand measurement
Personalized firearm recommendations
Integrated POS & branch management

FLDOne platform

Hand ScanAI MatchPOSBranches

One platform · Fit & shop connected

FLD app · Key features

Everything to measure & sell

From XR hand scan to POS checkout: measure, recommend, sell, and manage every order.From XR hand scan to POS checkout, First Line Defense gives firearm retailers one app to measure, recommend, sell, and manage every order.

01/06 features

Auto-playing · tap to jump

Auto-playing. Hover to pause

Firearms Detection

Kick off a hand scan from the detection screen: the advance scanner captures precise measurements to power best-fit analysis.

Technology

Built on a modern, proven stack

A scalable stack for FLD: XR hand scanning, AI matching, NMI payments, and cloud infrastructure.

SpeedSecurityScalabilityMaintainability

Mobile3One codebase scaling from iPhone to the iPad counter.
- iOS
- Swift
- iPadOS
Scanning & AI3XR-driven scans with AI firearm recommendations.
- XR / ARKit
- Vision AI
- ML matching
Backend & Payments3Type-safe services with PCI-compliant NMI payments.
- Node.js
- PostgreSQL
- NMI
Cloud & DevOps3Auto-scaling cloud infra with CI/CD pipelines.
- AWS
- Docker
- CI/CD

A scalable, type-safe foundation powering First Line Defense, from XR hand-scanning and AI matching to secure NMI payments and cloud infrastructure for multi-branch retail.

Chosen for

Speed

Optimised for fast, responsive apps.

Security

Hardened with best-practice defaults.

Scalability

Grows with your users and team.

Maintainability

Clean, documented, easy to extend.

01

Mobile

3 tools

Native iPhone & iPad experience.

iOS
Swift
iPadOS

One codebase scaling from iPhone to the iPad counter.

02

Scanning & AI

3 tools

XR hand measurement & best-fit matching.

XR / ARKit
Vision AI
ML matching

XR-driven scans with AI firearm recommendations.

03

Backend & Payments

3 tools

Retail logic & secure card processing.

Node.js
PostgreSQL
NMI

Type-safe services with PCI-compliant NMI payments.

04

Cloud & DevOps

3 tools

Scalable hosting & automated delivery.

AWS
Docker
CI/CD

Auto-scaling cloud infra with CI/CD pipelines.

FLD app

Key Mobile Screens

Hand scanning, AI recommendations, mobile POS, NMI checkout, and order management.Core First Line Defense flows: XR hand scanning, AI recommendations, mobile POS, NMI checkout, and order management on iPhone & iPad.

Philosophy

UX & Design Approach

Precision, accuracy, and seamless retail operations for firearm shops.A business-first design philosophy that prioritizes precision, accuracy, and seamless operations for firearm shops, combining AI technology with comprehensive retail management tools.

PrecisionAccuracyOperationsMobile-first

Design pillars: 04
Accessibility: AA
Hand scan: XR

Audience: Firearm shops & staff
Platforms: iPhone & iPad
Payments: Integrated NMI
Accessibility: WCAG AA

Every screen is shaped around real retail counters: precision first, fit data you can trust, and a fast, confident flow from hand scan to NMI checkout.

XR-Driven Hand MeasurementThe advance scanner and XR-driven system provide precise hand measurements, ensuring accurate firearm fit analysis and personalized recommendations.XR
Integrated POS SystemManage sales, inventory, and customer data with a powerful point-of-sale system integrated with NMI credit-card processing.NMI
Branch & Staff ManagementHandle multiple locations and staff members with comprehensive management tools built for multi-location firearm businesses.Multi
Comprehensive ReportingAccess detailed insights into sales performance, user activity, and subscription analytics for data-driven decisions.100%

XR-Driven Hand Measurement
XRPrecise scans
The advance scanner and XR-driven system provide precise hand measurements, ensuring accurate firearm fit analysis and personalized recommendations.
Accurate fit analysis from a single quick scan.
XR scanning
Integrated POS System
NMISecure pay
Manage sales, inventory, and customer data with a powerful point-of-sale system integrated with NMI credit-card processing.
Scan, sell, and get paid in one flow.
POS & payments
Branch & Staff Management
MultiLocations
Handle multiple locations and staff members with comprehensive management tools built for multi-location firearm businesses.
Run every branch and role from one dashboard.
Multi-branch
Comprehensive Reporting
100%Visibility
Access detailed insights into sales performance, user activity, and subscription analytics for data-driven decisions.
Data-driven decisions across every location.
Analytics

Tokens

Design System

Bold, precision-focused visual language across iPhone and iPad.A bold, precision-focused visual language for firearm retail: dark surfaces with confident red accents, applied consistently across iPhone & iPad.

4Colors

6Type sizes

5Spacing

6Radii + shadows

4Easings

8Icons

4Breakpoints

Typography6 scale steps
Spacing5 tokens
Icons8 symbols
Breakpoints4 sizes

Type samples

HeadingSpace Grotesk 800 · 32px

SubheadingInter 500 · 20px

Body text for product listings, collections, and guides.Inter 400 · 16px

Color palette4

Typography6

Heading

Space Grotesk 800 · 32px

Subheading

Inter 500 · 20px

Body text for product listings, collections, and guides.

Inter 400 · 16px

Caption labels

Inter 400 · 14px

Small helper text

Inter 400 · 12px

Bold heading

Space Grotesk 700 · 18px

Components4

Add to cart Wishlist

Organic In stockHeirloom

⏎

DefaultHoverActiveOff

Spacing scale5

XS4px

SM8px

MD16px

LG24px

XL32px

Border radius3

8px lg

12px xl

16px 2xl

Shadows3

shadow-sm

shadow-md

shadow-lg

Motion & easing4

StandardMost transitions

cubic-bezier(.4,0,.2,1)

DecelerateEnter / reveal

cubic-bezier(0,0,.2,1)

AccelerateExit / dismiss

cubic-bezier(.4,0,1,1)

SpringPlayful emphasis

cubic-bezier(.22,1,.36,1)

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