Bulletpoint mounts use a modular 20mm ball-and-socket system for holding phones, tablets, cameras, radios, and other devices inside trucks and SUVs. The part most owners recognize is the RubiGrid dash platform, but RubiGrid is only one piece of the larger mounting ecosystem.
The company also sells single-device bases, adjustable arms, magnetic heads, AMPS adapters, and other accessories built around the same 20mm standard.
This guide explains how the system works, what RubiGrid is, how the 20mm setup compares with RAM, where Tackform accessories fit in, and when a full dash platform makes sense.
Table of Contents
What Are Bulletpoint Mounts?
Bulletpoint Mounting Solutions sells modular vehicle hardware built around a 20mm ball-and-socket system.
Instead of buying a completely different setup every time you add a phone, tablet, camera, or other device, you can build around compatible balls, arms, holders, and bases.
A typical setup may include:
- A vehicle-specific base or RubiGrid platform
- A 20mm mounting ball
- An adjustable arm
- A phone holder, tablet cradle, camera adapter, or other device holder
That modular design is the main attraction.
The company also sells simpler single-device options, so you do not need a full RubiGrid setup just to mount one phone.
See Bulletpoint mounting options →
What Is the RubiGrid Dash Mount?
RubiGrid is the company’s multi-device dash platform.
At its core, it is a base rather than a phone holder.
The platform provides several mounting positions across the dashboard. Once installed, you add one or more 20mm balls, arms, and device holders depending on what you want to mount.
That could include:
- A phone used for navigation
- A tablet or GPS
- An action camera
- A two-way radio or microphone
- Another accessory used inside the truck
Bulletpoint states that some RubiGrid configurations can support up to five devices on a single base.
That is the main reason work truck and overland owners consider it instead of installing several independent mounts around the cabin.
The part that causes confusion is that RubiGrid is the name of the platform, not the name of every product in the lineup.
If you only need one phone mounted, you may not need the larger platform at all.
View RubiGrid Mounts on Amazon →
How the 20mm Ball Mount System Works
The hardware is built around a 20mm ball-and-socket design.
A 20mm ball attaches to the base or RubiGrid platform. An adjustable arm clamps around the ball and lets you position the device at the angle and distance you want.
The other end of the arm connects to a phone holder, tablet cradle, camera adapter, radio bracket, or another accessory.
The system also uses AMPS-compatible hardware. The common four-hole AMPS pattern gives you another way to attach compatible cradles, adapters, and holders.
The important number is 20mm.
That matters because this ball size is not unique to one brand.
Tackform also has a large 20mm accessory line, which gives owners additional choices for arms, holders, magnetic heads, camera mounts, AMPS adapters, and other components.
For a deeper look at RAM’s hardware and ball sizes, see our RAM Mounts guide.
See 20mm ball mount components →
Can You Use Tackform 20mm Parts?
Yes. Tackform is worth considering if you already have a RubiGrid setup or another compatible 20mm base and want more choices within the same ball size.
Tackform’s 20 Series includes:
- Adjustable 20mm arms
- Magnetic phone holders
- Spring-loaded phone cradles
- Action camera mounts
- AMPS adapters
- Tablet mounting components
- Additional 20mm bases and connectors
That makes Tackform useful if the exact holder or arm configuration you want is not available from the original system.
You still need to pay attention to how each component connects. Tackform also sells parts that use its own base-side interfaces, so make sure the accessory you are buying uses the 20mm connection you need.
For most RubiGrid owners, though, Tackform’s 20mm line is a legitimate place to look when expanding a setup.
See Tackform 20mm mounting accessories →
What You Need for a RubiGrid Dash Mount Setup
A RubiGrid installation is rarely just one component.
Most setups are built from three basic layers:
- The RubiGrid base built for your specific vehicle, which determines how and where the system attaches to the dash.
- A mounting ball and arm for each device you want to position on the platform.
- A device holder such as a spring-loaded phone cradle, magnetic phone holder, tablet clamp, camera adapter, or other compatible accessory.
That modular approach is one of RubiGrid’s biggest strengths, but it also means you should plan the complete setup before ordering individual pieces.
If you want a phone, tablet, and camera mounted at the same time, for example, do not just buy the base. Figure out how many mounting positions, arms, and holders you will need first.
Vehicle-specific platforms are designed around the dashboard of a particular truck or SUV generation.
That makes checking fitment especially important.
A base intended for one model year or dash configuration should not be assumed to fit another simply because the interiors look similar.
See phone mounts and holders →
Where RubiGrid Works Best
| Use Case | How Well It Fits | Why |
|---|---|---|
| Work trucks | Excellent | Provides mounting positions for a phone, tablet, radio, camera, or other equipment on one platform |
| Overlanding and off-road | Excellent | Useful when several navigation, communication, or camera devices need to share limited dash space |
| Daily commuter, single phone | Fair | A smaller single-device mount is usually simpler and takes up less space |
| Motorcycles | Not applicable | RubiGrid is a vehicle dash platform rather than a handlebar mounting system |
RubiGrid is strongest when you actually need more than one device mounted in the same truck.
If all you need is a single phone holder, the multi-device platform may be more hardware than the job requires. A smaller single-device setup will usually take up less room.
For examples of how different mounting approaches work in a truck interior, see our GMC Sierra phone mount guide.
RubiGrid vs RAM Mounts
Both systems use modular ball-and-socket hardware, but they approach vehicle mounting differently.
RAM has a much broader ecosystem covering cars, trucks, motorcycles, marine electronics, cameras, aviation, commercial equipment, and more.
Bulletpoint is more focused on vehicle interiors, particularly truck and SUV setups.
RubiGrid is the clearest example of that difference.
| Feature | RubiGrid | RAM |
|---|---|---|
| Common ball size | 20mm | 1-inch B-size, plus other sizes |
| Primary focus | Truck and SUV dash platforms | Very broad range of vehicles and equipment |
| Base style | Vehicle-specific multi-position platform | Suction, drill-down, handlebar, seat bolt, and many others |
| Multi-device setup | Designed around several mounting positions on one base | Usually assembled from individual components |
| Accessory alternatives | 20mm hardware plus Tackform options | Large RAM-specific ecosystem |
Neither system makes the other unnecessary.
RAM’s enormous parts catalog makes it useful when you need to build an unusual configuration or want one ecosystem that extends well beyond a truck dashboard.
RubiGrid makes more sense when the goal is a clean vehicle-specific multi-device setup.
The availability of Tackform’s 20mm accessory line also gives owners more flexibility than they might assume at first glance.
Compare RAM B-size mounting components →
RubiGrid Installation: Check Your Vehicle First
Installation is not identical across every vehicle.
Some applications may use existing attachment points or factory hardware. Others can require drilling or modification of a dash component.
Before buying a RubiGrid base, check:
- Your exact vehicle model and model year
- Any trim-level or dashboard exclusions
- Whether the installation uses existing mounting points
- Whether drilling or dash-panel modification is required
- Which balls, arms, and holders are included
This is especially important around model-generation changes. Automakers sometimes redesign the dashboard while leaving the exterior of the truck largely unchanged.
Common RubiGrid Mistakes
- Buying the base without checking which balls, arms, and device holders are included
- Assuming it will fit a similar truck or different model year without checking the exact listing
- Trying to attach a RAM B-size arm to a 20mm ball
- Ignoring Tackform’s 20mm accessory line when looking for alternate holders or arms
- Buying the full platform for a single phone when a smaller mount would do the job
- Not checking trim exclusions or dashboard changes within a vehicle generation
- Assuming every installation is no-drill without checking the instructions for that specific vehicle
View RubiGrid Mounts on Amazon →
Is the System Worth It?
For the right owner, yes.
The hardware makes the strongest case when you want a modular setup that can grow with your needs.
You can start with a single phone and later add a tablet, camera, radio, or another accessory without abandoning the same 20mm ecosystem.
RubiGrid takes that idea further by giving several devices a shared dash platform.
That makes it particularly useful in a work truck, overland rig, or other vehicle where multiple devices need to stay accessible.
The wider 20mm market also adds flexibility. Tackform provides another source for compatible arms, holders, adapters, and specialty components.
If you just need one phone mounted and nothing else, however, a full RubiGrid platform is probably more system than you need.
A smaller phone holder, Tackform setup, RAM mount, or another vehicle-specific option will usually take up less space and involve fewer components.
RAM truck owners should also look at our RAM 1500 phone mount guide or RAM 2500 phone mount guide before deciding whether a full dash platform is necessary.
Bottom line: Bulletpoint offers a useful modular 20mm ecosystem with strong truck and SUV support. RubiGrid is the centerpiece for multi-device installations, while smaller bases and the broader 20mm accessory market give you options for simpler setups.
Frequently Asked Questions
What are Bulletpoint mounts?
They are modular vehicle mounting products built around a 20mm ball-and-socket system. The lineup includes phone holders, arms, adapters, and RubiGrid multi-device dash platforms.
What is a RubiGrid dash mount?
RubiGrid is Bulletpoint Mounting Solutions’ modular platform for mounting multiple devices across the dashboard of a compatible truck or SUV.
Is RubiGrid the same as Bulletpoint?
No. RubiGrid is one product line from Bulletpoint Mounting Solutions. The company also sells single-device bases, arms, holders, and other 20mm accessories.
Will a RAM arm fit a 20mm ball?
Not if you are comparing a 20mm ball with RAM’s common 1-inch B-size system. The sizes are different, so a standard B-size arm is not designed to clamp onto a 20mm ball.
Can I use Tackform parts?
Yes. Tackform’s 20 Series uses a 20mm ball-and-socket system, making many of its arms, holders, adapters, and accessories useful options for compatible setups.
Check the connection method on the individual accessory because some Tackform products also use proprietary interfaces.
What accessories work with a 20mm ball mount?
Common accessories include phone cradles, magnetic phone holders, adjustable arms, tablet mounts, action camera adapters, AMPS plates, and other device-specific holders.
How many devices can RubiGrid hold?
Bulletpoint advertises configurations capable of supporting up to five devices on one platform. The practical number depends on the dashboard, device sizes, arm lengths, and how much space you want to occupy.
Does installing RubiGrid require drilling?
It depends on the vehicle and platform version. Some applications may use existing mounting points, while others can require drilling or modification of a dash component.
Is RubiGrid worth it for only one phone?
Usually not. Its main advantage is organizing several devices around one platform. If you only need one phone, a smaller single-device setup will usually be simpler.
Can you add accessories later?
Yes. You can start with one device and add arms, holders, cameras, tablet mounts, or other accessories later.
You can also use compatible 20mm accessories from Tackform where the connection works for your setup.
Shop Bulletpoint Mounting Options →
