Gun Builder Simulator

4.1.1

MOBNIX

4.12

12,434 reviews

1,000,000+
Downloads

Free

Build your ultimate gun with large selection of parts, attachments and camos!

Gun Builder Simulator by MOBNIX is a weapon customization sandbox that lets you tune rifles, pistols, shotguns, and more with unlimited ammo and a wide range of attachments. Enjoy cinematic slow-motion, realistic muzzle flashes, and 3D shell ejections as you build and test your own weapons. Not ranked in any top list, the app combines deep customization with a free entry point and a solid 4.13 rating from 12,453 reviews, backed by over 1,000,000+ downloads.

Pros & Cons

Deep weapon customization across multiple gun types
Free access to attachments and camouflage options
Realistic effects: muzzle flashes, shell ejections, and slow-motion
Screenshots and sharing to showcase builds
Shooting range support and selective-fire options

Limited recent growth with 0 downloads in the last 30 days (4.4K)
Fewer realistic sounds relative to some competitors
Content emphasizes customization over official-realistic weapon licensing

About Gun Builder Simulator

Gun Builder Simulator is a simulation app developed by MOBNIX.

Download Statistics

Gun Builder Simulator has been downloaded 3.3 million times. In the last 30 days, the app was downloaded 4.4 thousand times.

User Ratings

Gun Builder Simulator is rated 4.12 out of 5 stars. The rating is based on 12 thousand ratings.

App Information

Gun Builder Simulator is FREE to download. The APK download size is 48.67 MB. The latest version available is 4.1.1. The last update was on February 9, 2026.

Technical Requirements

Gun Builder Simulator requires Android 5.1+ or higher. The app has a content rating of Medium Maturity. The app has been available on Google Play June 2015.

Description

Gun builder simulator is app that allow you to tune up weapons as you want!

More data about Gun Builder Simulator

Price	Free to download
Total downloads	3.3 million
Recent downloads	4.4 thousand
Rating	4.12 based on 12 thousand ratings
Ranking	Not ranked
Version	4.1.1
APK size	48.7 MB
Number of libraries	3
Designed for Android	5.1+
Maturity	Medium Maturity
Ads	Contains ads

App Performance Report

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Alternative downloads for the Gun Builder Simulator app

Gun Builder Simulator compared with similar apps

Common keywords of similar apps

Build Attachments Rifle Builder Assault Muzzle Flashes Shells Completely Love Slow Motion Smoke Bullets Screen Options Device Normal Gun Guns Weapon Simulator Weapons Unlimited Ammo Realistic Shooting Ultimate App Rifles Machine Sniper Experience Fire Choose

Keywords missing from this app

Sounds Real Shot Sound Shoot Game Features Effects Collection Eweapons Games Pistols Enjoy Prank Friends Recent Shotguns High Shotgun Range Added Master Pistol Firearms Quality Gunshot Shots Time Revolver Shooter Favorite Vibration Customize

Google Play Rating history and histogram

Rating history

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Downloads over time

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Gun Builder Simulator has been downloaded 3.3 million times. Over the past 30 days, it averaged 150 downloads per day.

Changelog of Gun Builder Simulator

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Developer information for MOBNIX

MOBNIX

mobnixdigital@gmail.com

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Comments on Gun Builder Simulator for Android

★★★★☆ chris mattice · Feb 1, 2026

So far I like it. But ads are getting annoying. Also I would like to see what scopes look like before purchasing.

★★★★☆ Mitchell Baker · Jul 31, 2023

It's a good game, although it has a few things that make it a bit tedious. More attachments would be nice. The scope sway on some scopes should be reduced, and the timer should be extended or taken away completely. Trying to score 100 points with only 12 shots in 15 seconds is hard enough, never mind having to deal with a scope that's swaying all over. Make the rewards better! If 60 coins for 3 stars is rubbish when some attachments are 300 coins each!

★★★★★ Everett · May 6, 2026

Love this game! So many realistic guns and they are so customizable. I'm a true gun enthusiast, and I love guns, so this is where it's at!!!

★★☆☆☆ Diam Mukhim · Jan 21, 2023

It was fun but when it comes to unlock gun, I can unlock it the ads are always not available even when there is internet conection

★☆☆☆☆ Michael Mayhew (ARavenNamedPo) · Feb 28, 2025

Another trash game. Forat time I opened it there was an ad before I even tried it. If I could give negative stars I would. Typical trash game.

★★☆☆☆ Los Del · Jan 21, 2023

The main issue is countless ads. After doing missions or whatever, I was getting perfect ones every time, but ad after ad, I got to the point where I was getting 3 ads per shoot sesh just to gain like 20 coins. Good mechanics and all, just need to work on the number of ads, and maybe add a higher number of levels to gain coins on.

Google Play Rankings for Gun Builder Simulator

This app is not ranked

Technologies used by Gun Builder Simulator

12 permissions · 3 libraries

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Trust & Safety: The app requests standard ad/analytics related permissions (advertising IDs, internet, network state) plus foreground service, notifications, vibration, wake lock, and license checks. It does not request location or camera access. As a free-to-play entertainment simulation, users should apply platform safety guidelines and understand the content is virtual.

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