Parts Inventory

A dedicated inventory for firearm parts and internal components. Barrels, triggers, BCGs, firing pins, and everything else that goes into a build.

Built for Internal Components

Accessories was never the right place to track internal components like barrels, bolt carrier groups, or trigger assemblies. Parts gives them a proper home with categories, quantity tracking, and direct integration with the Firearm Builder.

Parts are things that get installed into a firearm. Accessories are things that attach to a firearm or stand alone (optics, lights, slings). Parts integrates with the Builder so you always know exactly what's inside each build.

23 Standard Categories

Upper Components

Upper Receiver
Barrel
Handguard / Rail
Muzzle Device
Gas Block
Gas Tube
Bolt Carrier Group
Charging Handle

Lower Components

Lower Receiver
Trigger Group
Firing Pin
Safety / Selector
Buffer / Spring
Stock
Pistol Grip
Magazine Release

Custom Categories

Need a category that isn't listed? Add your own custom categories from Preferences. They'll appear alongside the standard ones everywhere in the app.

Key Features

Quantity Tracking

Track how many you own, how many are assigned to builds, and how many are available. Never lose track of spare parts again.

Photos & Documents

Attach photos, receipts, warranty cards, and spec sheets to any part. Everything in one place.

Purchase Tracking

Record purchase price, date, and condition. Know exactly what you've spent on each build.

Builder Integration

Parts flow directly into the Firearm Builder. Install, swap, and remove parts between builds with full change tracking.

Pro Feature: Parts Inventory is available with a Pro subscription. Manage unlimited parts with photos, documents, and Builder integration.