GUNSTRUCTION is a 3D weapon builder and customization tool that allows the user to prototype firearm builds using real world parts! This is not a toy gun builder, but a robust tool to help gun enthusiasts and newcomers plan out their dream build. With over 100 licensed manufacturers, and over 3,000 parts, we are the most extensive 3d builder, with new parts being added constantly!

GUNSTRUCTION features multiple weapon platforms, with more being added all the time. There is an in-app purchase available to unlock Photo Mode, Paint Mode, more save slots, and access to older "legacy parts".

•Over 20 points of customization per weapon platform
•Hundreds of accessories from bipods, vertical grips, and rail covers to red dots, night vision, and QD suppressors
•Accessory support for picatinny, keymod, M-lok and other mounting systems
•Select from off the rack rifles, or build your own from scratch
•New parts constantly added
•Real time conflict system helps take some of the guess work out of building a weapon
•Multiple caliber support for all platforms

In-App upgrade:
•Photo Booth mode allows you to snap shots of your virtual build in various environments
•Paint and Camo your weapon with over 300 choices
•Save and share up to 10 builds with friends
•Unlock more parts to customize with
•Keep track of cost, weight, overall length, and other key elements to help plan your build

Presented by
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GUNSTRUCTION is a graphically intensive application. You may experience reduced performance or App termination on older devices.
Recommended devices are:
-iPhone 6 or newer

For addition information please contact our support page:

What’s New

Version 8.02

• Backend metrics updates

Ratings and Reviews

4.4 out of 5
693 Ratings

693 Ratings

Zachary j p ,

Great app, some bugs and lacks some parts

So far about a month in I love this app, it’s great seeing some of my future builds come to life, my complaints so far is a couple of glitches like the game crashing or when I try to use a filter it opens up every menu it can cluttering my screen with stuff I can’t close. Other things are like some parts not being labeled right, example the Daniel defense omega rail, it’s a free float rail but in app it’s a fixed rail and “needs” a handguard cap, now my final complaints are the lack of certain parts and prices, knowing it’s sponsored by brownells I was expecting more of their stuff but there’s no Brn 180 customization, which would be cool, and the prices in app are a bit strange some stuff being way over and some being below, all those small things aside it’s a great app if you wanna invest time into building but want to see what it will look like first

crazymerc118 ,

The app I’ve been looking for over literally 10 years

I was told yesterday about this app by my buddy, who is a avid gun enthusiast like myself, and I have to say, I am very impressed. I’ve always loved apps that let me customize guns, but they rarely had the option to buy what you built, if they did, there weren't a lot of options. This solved that by including a great amount of products to choose from. On top of that, it lets you know if said products are compatible or not, which is fantastic. I definitely bought the full version so I could make multiple builds, I feel it was worth the $2.99. That being said, it’s 100% perfect, but nothing is. There are a few things that I saw that were off, like putting a flashlight attachment on some of the rails would look like the textures are clipping, which would mean it wouldn’t work on the real thing without moving it. Also there was some weird thing going on when putting some of the fore grips on, it would say it’s not compatible, even if was in the middle of the rail, but then I moved it slightly and it would work. Also when putting some attachments on a modular rail, it would clip through but still attach. Small things in my opinion and certainly not stopping me from using it. Love it and hope they add more products to work with.

hillary kill all clitorus ,

Was pleased...key word WAS

I use this app for a number of reasons.
1: Just to kill time and make pretty AR15’s and Remington model 700’s
2: Because Im in the middle of customizing a milspec paintball gun so i need inspiration before i drop money into parts and custom labor.
3: Im building an Aero Precision M4E1 AR15 and like to run through the options and visualize it better because we all know that above all else (accuracy, durability, cost) how sexy your gun looks is KEY to success.
But i sadly had my phone stolen and some BS later thanks to Apple I finally have a good phone to start downloading crap again. I had originally paid for the upgrade so i had more than one save space and i could paint my goodies and crap which was cool. But after i redownloaded and try to restore purchases, it wouldn’t f*%#in restore my upgraded version no matter how many times I angrily smashed the button, closed the app and restarted, deleted the app and redownloaded. Now i can hear you saying “well Matthew its only $2.99, dont get so worked about it and leave a one star review on a good app”. Well my response is my middle finger and F*%K YOU!!!! That $2.99 is easily a couple snickers bars or a cheap sandwich on my lunch break. Disappointed, but im dumb enough to pay again so ehhhhhhhhhh.


129.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Profanity or Crude Humor
Frequent/Intense Realistic Violence
In-App Purchases
  1. GUNSTRUCTION Full Upgrade $2.99
  2. AR308 Platform $1.99
  3. R700 Platform $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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