Build Your
Polymer80
From Scratch

Complete P80 build kits, 80% frames, matched slides and barrels. Step-by-step guides for first-time and experienced builders. No FFL required on 80% frames.

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Everything for your P80 and AR-15 builds

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Complete Build Kits

32 Products
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P80 Kits

25 Products
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80% Frames

7 Products
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80% Lowers

7 Products
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AR-15 Builds

8 Products
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Solvent Traps

8 Products

Best Selling Kits

Our most popular Polymer80 builds — proven by thousands of builders

Why Builders Choose Us

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Complete Kits

Every kit includes frame, slide, barrel, upper and lower parts — all matched and test-fit. One order, one box, one build. No sourcing parts from five different vendors.

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Same-Day Ship

Orders before 2 PM ship the same day. Discreet plain packaging with no product descriptions visible. Free shipping over $150 with full tracking on every order.

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Quality Tested

Every component is inspected before shipping. We test-fit slides to frames, verify barrel specs, and check spring tension. No cheap knockoffs — only OEM-spec parts.

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Build Guides

Step-by-step instructions with photos for every P80 model. PF940C, PF940v2, PF9SS — detailed guides for first-time builders and experienced gunsmiths alike.

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Secure Payment

Bank-level encrypted checkout. All major credit and debit cards accepted. PCI-compliant processing — your payment data is never stored on our servers.

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30-Day Returns

Hassle-free returns on unused items within 30 days. Defective parts replaced free of charge. Our support team responds within 24 hours to resolve any issue.

New Arrivals

Featured Brands

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Polymer80

The original 80% frame. PF940C, PF940v2, PF9SS with precision jig system.

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Anderson

MIL-SPEC AR-15 80% lowers. American-made quality at competitive prices.

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Swenson

Precision slides and barrels for Glock-pattern builds. Match-grade accuracy.

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Strike Ind.

Enhanced mag releases, comp, slide plates, and build tools for serious builds.

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Brownells

Parts and tooling trusted by gunsmiths for decades. Springs, pins, triggers.

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Lone Wolf

Premium aftermarket barrels and slides. Tight tolerances, exceptional accuracy.

BUILD GUIDE VIDEO

How to Build

Building a Polymer80 is straightforward with the right parts. Our complete kits include everything — frame with jig, matched slide and barrel, and all small parts. Most first-time builders finish in 2-3 hours with basic tools.

We include step-by-step guides with every kit. From drilling and milling the frame to installing the trigger and function testing — every step is documented with photos and clear instructions.

Builder FAQ

Under federal law, individuals may manufacture firearms for personal use without a license, provided they are legally allowed to possess firearms. State laws vary significantly — some states restrict or ban unserialized firearms. Always verify your state and local regulations before purchasing.

A drill press or hand drill with included bits, files (flat and round), 220/400 grit sandpaper, channel liner tool, pin punch set, and a flat work surface. A Dremel is optional but speeds up finishing. Total tool cost: under $50 if you don’t already own them.

First-time builders typically finish in 2-3 hours. Experienced builders can complete a P80 in under an hour. The frame milling takes 30-45 minutes, parts assembly another 30-60 minutes. Take your time on the frame — rushing leads to fitment issues.

We ship to all states where 80% frames are legal. Some states have enacted restrictions — we monitor legislation and will notify you if we cannot ship to your location. Most orders ship within 24 hours with full tracking.

30-day returns on unused items in original packaging. Defective parts replaced free — send photos to our support team. Once a frame has been drilled or modified, it cannot be returned. We stand behind everything we sell.
📦Discreet Ship
✅Quality Tested
📖Build Guides
🔒Secure Pay
🔄30-Day Returns

Buy Polymer80 Build Kits Online

Looking for Polymer80 build kits? Polymer80 Builds is your headquarters for complete P80 builds, 80% frames, slides, barrels, and everything you need to build your own pistol from scratch. We carry PF940C compact, PF940v2 full-size, AR-15 80% lowers, and solvent trap kits from trusted manufacturers.

Every complete build kit ships with a matched frame, slide, barrel, upper parts kit, and lower parts kit. No hunting for compatible parts — everything is designed to work together and test-fit before shipping. Most first-time builders complete their P80 in 2-3 hours with basic tools.

All orders ship within 24 hours in discreet packaging with full tracking. Free shipping on orders over $150. Step-by-step build guides included with every kit. Whether it’s your first build or your twentieth, we have the parts, kits, and expertise to make it happen.

Quality parts. Honest prices. Real support. Build with Polymer80 Builds.