Build Cost Calculator
Estimate what it costs to build an AR-15 in 2026. Select your purpose and quality tier to get an itemized cost breakdown with real component prices. Toggle accessories on and off to match your budget.
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Frequently Asked Questions
How much does it cost to build an AR-15 in 2026?
A budget AR-15 build costs $500-$900 for the rifle alone, while mid-range builds run $900-$1,600. Premium builds with top-tier components cost $1,600-$2,800, and high-end 'gucci' builds can exceed $3,000-$5,000+. These prices include the rifle only. Add $200-$1,500+ for optics and accessories.
Is it cheaper to build or buy an AR-15?
Building is typically cheaper at the budget and mid-range tiers, saving $100-$300 compared to equivalent factory rifles. At the premium tier, the savings narrow. The real advantage of building is choosing exactly the components you want rather than settling for a factory configuration.
What is the most expensive part of an AR-15 build?
The barrel and optic are typically the most expensive components. A quality barrel runs $150-$650 depending on tier, while optics range from $100 for a budget red dot to $2,800+ for premium magnified scopes. The trigger and bolt carrier group are the next largest costs.
What tools do I need to build an AR-15?
At minimum you need an armorer's wrench, a vise block (upper and lower), roll pin punches, a torque wrench, and anti-seize grease. A complete AR-15 armorer's tool kit costs $50-$150. Some builders also invest in a bench vise and specialized barrel nut wrenches.
Can I build an AR-15 for under $500?
It is possible but challenging. A bare-bones rifle with a stripped lower ($50), budget upper assembly ($200-250), mil-spec lower parts kit ($40), and basic stock + buffer kit ($40-60) can come in under $500. However, this excludes optics, sights, and accessories. Most builders find the $600-$800 range offers much better reliability and accuracy.
Ready to Build?
Use the Configurator to select specific components, check compatibility, and get a complete parts list for your build.
Launch Configurator