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BigCommerce Migration & Custom Storefront Case Study — MagnumBallistics.com

How Optimum7 migrated Magnum Ballistics from Coreware to BigCommerce, delivering a custom Stencil storefront, Elasticsearch-powered search, custom layaway functionality, and full SEO preservation in one coordinated launch.

The Business

Magnum Ballistics is a Michigan-based firearms and shooting gear retailer operating out of Mount Pleasant. Their catalog covers the full spectrum of the shooting sports market: handguns, rifles, shotguns, suppressors and NFA items, ammunition, optics, gun parts, and accessories from top brands including Ruger, Glock, Sig Sauer, Smith & Wesson, Beretta, Colt, Henry, CZ, Springfield Armory, and Barrett.

Firearms eCommerce is a demanding vertical. It sits at the intersection of strict regulatory requirements, high-consideration purchase behavior, and intensely competitive pricing. A buyer searching for a specific caliber, action type, or platform needs to find exactly what they are looking for without friction; trust signals and a credible storefront are as important as product availability. Catalogs of this depth and complexity require infrastructure that generic platforms often cannot support out of the box.

Magnum Ballistics had been running on Coreware, a legacy platform that had served its purpose but was increasingly limiting what the business could do. Navigation and filtering across thousands of SKUs required precision. Marketing automation, layaway payment options, and a modern storefront experience were all capabilities their platform could not support at the level the business required. Optimum7 was engaged to lead the full migration to BigCommerce and build those capabilities from the ground up.

The Objective

Before any work started, the scope was defined across six workstreams: data migration, web content migration, Stencil template customization, advanced search and filter, custom layaway functionality, and Klaviyo email automation.

A few constraints shaped the scope of the project. The data volume was manageable but not trivial: fewer than 5,000 orders, customer records, and products, with products averaging five options each. Accuracy mattered more than speed. The template work was scoped as a customization of an existing BigCommerce Stencil theme, not a custom design built from scratch. That distinction matters because it sets the boundaries of what we were building and where: brand-aligned, conversion-optimized, and mobile-ready, but working within the structure Stencil provides rather than designing outside it.

Everything else, the search functionality, the layaway architecture, and the email flows, had to be built to spec and production-ready before the domain switched. The objective was one launch where everything worked.

 

Key Business Challenges

Migrating a live firearms retailer from a non-standard legacy platform while simultaneously building custom front-end and payment functionality introduced compounding technical constraints that had to be addressed in sequence.

1. Extracting Clean Data from a Non-Standard Legacy Platform

Coreware is not a widely supported eCommerce platform. Extracting and mapping orders, customer records, and product data to BigCommerce’s data architecture required more than a standard migration tool could handle. Each record category had to be validated before import, with a final data gap import planned for the pre-go-live window to capture any transactions generated during the migration period. There was no margin for loss on a live retail business.

2. A Deep, Multi-Category Catalog That Outgrows Native Search

A catalog spanning firearms by action type, caliber, and platform; ammunition by gauge and application; optics by mount type and magnification; and accessories across dozens of subcategories creates a product discovery challenge that BigCommerce’s default search cannot adequately address. Customers searching for a bolt-action rifle in a specific caliber or a scope mount compatible with a particular platform need filtering that responds in real time and returns accurate results immediately. Without it, buyers leave.

3. Layaway as a Core Revenue Channel, Not an Optional Feature

Magnum Ballistics operates a genuine layaway program used by customers purchasing higher-ticket firearms and gear. This required a real two-step payment architecture: a 30% deposit captured at checkout, inventory reserved from that moment, fulfillment held until full payment is received, and a visible balance payment interface in the customer account. BigCommerce has no native layaway capability. The entire system had to be custom-built on top of standard platform functionality, using renamed order statuses, a custom-triggered Pay Remaining Balance flow, and backend logic to connect the two transactions.

4. Compliance, Trust, and the High-Consideration Purchase Environment

Selling firearms online requires a buying experience that projects credibility and compliance at every step. Customers making high-consideration purchases, whether a handgun, a rifle, or an NFA item, need to trust the retailer before they transact. Trust signals, clear policy pages, and a professional storefront are not cosmetic in this vertical; they directly affect whether a visitor converts or exits. Every design and layout decision in the template implementation had to account for this.

 

The Strategic Challenge

The overarching tension in this engagement was sequencing: how to run a live-business migration safely while simultaneously building custom functionality that does not exist natively on the destination platform. Moving too fast on the custom builds before the data migration was validated would have created compounding risk. Moving too slowly on the template and advanced features would have delayed the capabilities Magnum Ballistics needed to compete.

Optimum7 resolved this by treating the migration as the foundation layer, completing data extraction, validation, and SEO redirect mapping before layering in template customization, Elasticsearch integration, and the custom layaway architecture. Each phase was scoped independently but coordinated toward a single go-live, ensuring that nothing reached production until the migration underneath it was stable.

The Strategy

Optimum7 structured the engagement across six coordinated workstreams, treating the migration as the foundation layer before building outward into the storefront, advanced functionality, and automation.

Data Migration

All orders, customer accounts, and product data were extracted from Coreware, mapped to BigCommerce’s data architecture, and imported with full validation before any other phase began. Products carried an average of five options each, requiring careful variant mapping for SKU-level accuracy. A final data gap import was scheduled for the pre-go-live window to capture any transactions created during the migration period. 301 redirects were implemented across all product and category URLs at this stage, protecting the search rankings Magnum Ballistics had accumulated for specific firearms models, calibers, and brand-category combinations.

 

Web Content Migration

All static and informational pages were migrated to BigCommerce with formatting, images, and internal links preserved. Client-created forms were embedded via Wufoo into the appropriate pages. A second round of 301 redirects covered all content page URLs, closing the remaining gaps in the redirect map.

 

BigCommerce Stencil Template Implementation

Optimum7 worked with Magnum Ballistics to select a Stencil theme suited to a full-catalog firearms retailer, then customized it with layout, styling, and positioning aligned to the brand and reference sites provided at kickoff. Conversion optimization was layered in throughout: primary and secondary CTAs at the key decision points, sticky calls to action that stay visible as customers scroll product pages, soft add-to-cart to reduce browsing friction, and trust-building elements (reviews, badges, and security assurances) placed where buyer confidence most directly affects whether a transaction completes.

 

Advanced Search and Filter Implementation

Optimum7 built an Elasticsearch-powered search and filtering system designed around how firearms buyers navigate a catalog: by platform, caliber, action type, brand, and use case. Key elements included:

  • Dynamic real-time filtering by action type, caliber, brand, and category, with results updating instantly without page reloads
  • Autocomplete and search suggestions surfacing relevant products, brands, and categories as customers type, critical for buyers who search by model name or SKU
  • Bulk CSV-based filter import and validation, plus a customizable admin dashboard for managing filter visibility and category assignments as the catalog grows
  • Webhook-driven product index sync keeps search results current as inventory changes

 

Layaway Functionality Implementation

BigCommerce has no native layaway capability, so the entire system was custom-built on top of standard platform functionality. A customer selects layaway on the product page and checks out, paying only 30% of the total; inventory is reserved immediately. A Pay Remaining Balance button appears in their account on the order details page, initiating a separate checkout for the remaining 70% tied to the original order. Once the second payment is confirmed, the order status updates automatically, and the fulfillment team is notified to ship. No manual steps are required beyond standard order monitoring.

 

Store Setup, Email Automation, and SEO Configuration

Optimum7 completed the full BigCommerce store configuration: tax, shipping, payment gateway, and legal pages. App recommendations were provided across SEO, marketing, shipping, and customer engagement. Klaviyo was configured with 11 flows and 55 emails covering the full customer lifecycle, including cart abandonment, welcome series, repeat-purchase incentives, and VIP segmentation for customers with more than $1,000 in lifetime purchases, with a 14-day post-launch audit scheduled to verify deliverability and revenue attribution.

Results

Key Outcomes

  • Full data migration completed from Coreware to BigCommerce: fewer than 5,000 orders, customer records, and products transferred with complete accuracy and data integrity verified before go-live
  • Comprehensive 301 redirect implementation across all product, category, and content page URLs, protecting organic search rankings built on the legacy platform
  • Custom BigCommerce Stencil template deployed with brand-aligned styling, conversion-optimized layout, trust-building elements, mobile responsiveness, sticky CTAs, and soft add-to-cart
  • Elasticsearch-powered advanced search and filtering live at launch with real-time AJAX filtering, autocomplete, webhook-driven index sync, and bulk CSV filter management built for a deep multi-category firearms catalog
  • Custom layaway functionality operational at launch: 30% deposit flow, inventory reservation on initial payment, Pay Remaining Balance interface in the customer account portal, and automatic fulfillment release on full payment
  • Klaviyo email automation configured with 11 flows and 55 emails across cart abandonment, welcome series, repeat-purchase incentives, and VIP segmentation
  • Full store setup completed: tax, shipping, payment gateway, legal pages, app stack, and SEO foundations in place at go-live

 

Business Impact

Search, layaway, and a conversion-optimized storefront were all live on day one. Customers can now find what they are looking for across a large, multi-category catalog by caliber, action type, brand, and platform, with results that respond instantly. The layaway program runs without manual intervention: once a deposit is placed, inventory is reserved, the balance payment interface is available in the customer account, and fulfillment releases automatically on full payment.

Organic traffic to product and category pages carried through the migration without ranking loss. Klaviyo gives the team the infrastructure to engage customers across every stage of the purchase lifecycle, from first visit to repeat buyer, without manual campaign management at each touchpoint.

 

Strategic Outcome

At launch, Magnum Ballistics introduced a layaway payment experience that most firearms eCommerce storefronts do not offer, built directly into BigCommerce without a third-party subscription engine or custom checkout. An Elasticsearch-powered search system handles catalog complexity at scale. The Stencil storefront carries the trust signals and conversion mechanics the vertical demands. Together, these systems created a complete commercial infrastructure from day one.

The BigCommerce foundation Magnum Ballistics launched on is built to grow. Catalog expansion, additional custom functionality, and deeper marketing automation are all achievable with a platform configured correctly from the start with infrastructure that can carry the business forward without the constraints that made Coreware a ceiling.

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