AR-15 Builder · 100% Free

# Stop Guessing. Start Building.

Not sure which parts work together? We'll walk you through it. Pick your components, get warned about anything that won't fit, and see real prices from real retailers — all in one place.

Start a Build → 100% Free · No account required
The process

## 3 Steps. One Battl-Ready Build.

No experience required. No part numbers to memorize.

Step 01

### Pick your parts

Browse real components organized by what they do — barrel, trigger, lower, upper, and more. No prior knowledge required.

Step 02

### Flag the conflicts

Gas length, buffer weight, caliber — Battl catches the mismatches before you spend money on the wrong part.

Step 03

### Price it. Pull the trigger.

Live prices from real retailers, side by side. Click through to buy. We never touch your order.

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Builder preview — looping screen recording

What you get

## Built by gun nerds, for the everyday AR builder.

NO SUBSCRIPTIONS · NO SPONSORED RANKINGS · NO BULLSHIT

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### Build by role, not part number

Parts organized by function. Know what you need, not what SKU to search for.

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### Conflicts caught early

Gas system, buffer weight, caliber — flagged before checkout, not after the box arrives.

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### Real prices. Real retailers.

Running total with live prices. No estimated MSRP. What it actually costs, today.

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### Save your work

Free account. Save builds, pick up where you left off, run multiple configs in parallel.

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### Share the build

One link. Your buddy sees the full parts list — no login, no friction, no excuses.

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### No gates. No friction.

Browse and build freely. Create an account only when you're ready to save.

## What is Battl Builders?

Battl Builders is a free AR-15 build planner — the tool you've been doing in spreadsheets, rebuilt for how builders actually work. Select parts by what they do, validate compatibility as you go, and price your build across multiple retailers without opening a new tab.

Most AR-15 compatibility mistakes happen at the parts list stage: wrong gas system length for the barrel, buffer weight that fights your stock, caliber mismatches between upper and lower. Battl flags those conflicts automatically, so you catch them before they cost you a return label.

Whether you're planning your first rifle or spec'ing a dedicated precision upper, Battl Builders gives you a structured, guided way to research parts and buy with confidence.

## Your build starts here.

Free. No account required. Takes five minutes to get rolling.

Start a Build →
v3 — Copy Revision Updated copy is outlined in amber dashes.
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