Pick Parts. Build. Compare and Share.
Plan your build with interactive tools, learn from practical guides, and compare parts with real pricing—all in one place.
What you'll find here
Everything in one place
From your first question to your final build—parts, pricing, guides, and planning tools all in one place, built for folks who wrench on rifles, hunt, compete, or just enjoy tinkering.
AR15 Builder
AR15 Configurator & Builder
- AR15 configurator shows what's required vs optional with a clear progress meter.
- Understands bundles and DIY skips so weight, length, and cost stay honest.
- Add parts from the catalog, clear it, or start over anytime.
Guides
AR15 Builder Guides
- AR15 builder guides explain barrels, gas systems, triggers, optics, handguards, and muzzle devices.
- Each guide focuses on tradeoffs so you can make informed decisions, not just memorize specs.
- Cross-linked to relevant parts and planning tools throughout.
Tools
AR15 Builder Planning Tools
- Four tools in one place: velocity, sound risk, gas/buffer pairing, and zero/holdover estimators.
- Estimate expected ranges by caliber, barrel length, muzzle setup, and target distance.
- Shareable links let you save and compare configurations.
Catalog
AR15 Builder Parts Catalog
- AR15 builder parts catalog includes essential and accessory categories with search.
- Sort by name, price, maker, or rating; filter by price, bundles, and more.
- Caliber, material, and barrel-length filters where they make sense.
Product Pages
AR15 Part Price History & Offers
- AR15 part pages show merchant offers, lowest-price callouts, bundles, and specs.
- Price history sits next to ratings and reviews so you know if it's a fair deal.
- Add any part to your build; saved builds update on the server when you're signed in.
Discovery
AR15 Community Builds
- Browse AR15 community builds with filters for name, user, price, rating, and weight.
- Sort by newest, oldest, high/low price, rating, or weight.
- Open any build to see components, totals, and what was skipped.
Saved Builds
Save & Share AR15 Builds
- Save your AR15 builds to your account, edit later, or copy a build you like.
- One-click share for Reddit, Markdown, plain text, or just a link.
- Public pages allow voting, comments, and reporting to keep things clean.
Marketplace
AR15 Component Marketplace
- Browse AR15 component and part listings by type, location, and price; complete rifles are not listed.
- Listing pages include component breakdowns, condition badges, and contact and report actions.
- Create and manage your own listings with multi-item and bundle support.