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NEW!|#637e31
A9X Ambidextrous AR-9 Stripped Lower – Colt® Magazine Pattern
$254.99$229.99 -
GST-9: NOG100 - Holiday Exclusive - Completed
$709.96$589.97 -
GST-9: Mod100 - Black - Completed
$709.96$589.97 -
2 Guns in 1: GST-9 MOD100 Bundle
$239.99$199.99 -
Add to Cart The item has been addedGST-9: MOD100
$229.99$159.99 -
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Add to Cart The item has been addedGST-9: MOD100 - White
$229.99$159.99 -
Add to Cart The item has been addedGST-9: MOD100 - FDE
$229.99$159.99 -
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Fast Shipping
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Fast Shipping
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Fast Shipping
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FFL Items
Complete Builds
Whether you’re looking for a fully assembled firearm or a matched parts package ready for your next project, the 80% Arms Complete Builds collection brings it all together in one place. This category features a curated mix of complete rifle builds, factory-assembled platforms like the MOD100, and builder-ready kits designed to simplify your path from box to range.
For customers who want a turnkey solution, our assembled options arrive professionally built and ready to run. For builders who still want hands-on involvement, our complete build kits provide carefully matched components that eliminate the usual compatibility guesswork.
Turnkey Options and Builder-Ready Kits
Not every shooter wants the same level of involvement, and that’s exactly why this category exists. Inside you’ll find:
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Fully assembled firearms ready for transfer
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Complete rifle configurations
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MOD100 serialized pistol platforms
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Matched AR build kits
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Proven component combinations
Every option is selected with the same focus on reliability, fitment, and real-world performance that 80% Arms customers expect.
Built on Proven 80% Arms Standards
80% Arms built its reputation by supporting builders with precision-machined components and thoughtful design. Our complete builds carry that same mindset forward, whether you choose a factory-assembled platform or a kit for your next project.
We prioritize:
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Quality component pairing
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Consistent assembly standards
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Modern, shooter-focused configurations
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Clean fit and finish
The goal is simple: reduce friction, increase confidence, and deliver platforms that perform the way they should.
Shop Complete Builds with Confidence
Browse the current lineup of 80% Arms complete builds to find the configuration that fits your needs. Inventory and configurations update regularly, so check back often for new additions.