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    AMPS Compatible 20mm Ball with Metal Mounting Plate


    Each AMPS Plate and 20mm Ball Joint Assembly comes with Heavy Duty Bolts and Nylon Locking Nuts so you get everything required for a rock solid installation.

    Hole locations are in the standard AMPS pattern of 30mm x 38mm (1.181” x 1.496”) so this will mount to anything with the AMPS hole configuration.

    The ball size is 20mm and is compatible with our Carbon Fiber + Kevlar Mounting Arms and our GoPro Mount.



    Choose between our rectangular 4-Hole plate, 2-Hole plate or Mini 2-Hole plate depending on your needs.

    4-holes AMPS balls are recommended for maximum stability with phone and tablet holders.

    2-hole AMPS mounts are suitable for lightweight action cameras, other lightweight devices or certain narrow RubiGrid® dash mounts such as our 2022+ GMC/Chevy RubiGrid® Dash Mount and our 2016-2023 Toyota Tacoma RubiGrid® Dash Mount.

    The 2-Hole Mini is perfect for squeezing in an extra device when space is limited. The 2-Hole Mini is compatible with the Magnetic Mic utilizing their supplied hardware.


    The base is made from precision laser-cut metal and features a thin rubber strip to help absorb and reduce unwanted vibrations as well as prevent scratching with the mounting surface.

    The 20mm machined ball is also made from metal and features grooves to help provide additional friction and grip so your device won't spin or move.


    These plate and ball assemblies are fully compatible with our RubiGrid® Platform Base for the Jeep Wrangler JL and Gladiator, RAM Truck RubiGrid®, RubiGrid® for GMC Sierra & Chevrolet Silverado as well as our Ford F-Series Mounts.

    Shown below are 3 of our RubiGrid® systems with the 4-Hole AMPS Plate & Ball to demonstrate what is possible.


    Our 4-Hole AMPS balls are compatible with certain Garmin® units. See our Garmin® Compatibility page to confirm fitment.


    Looking for a 4-Hole AMPS ball with more installation hardware options? Look here: 4-Hole AMPS Ball with 3x Sets of Installation Hardware

    Customer Reviews

    Based on 424 reviews

    Outstanding workmanship!!!


    Love the modularity of this mounting system!

    Matthew Roberts
    Exceeded my expectations!!!

    From start to finish I couldn’t have ask for a better experience. I received my purchase’s quickly each package was very well made in quality material. The contents were organized within each box easily accessible for installation. Every piece appeared to be very well made of quality material. Bullet point definitely takes pride in the quality of their product and it shows. Definitely one of my better purchases that exceeded my expectation.

    Mario Mondragon
    Best mount ever

    Simple perfect, very handy, easy to use and install. It feels firm and strong.

    Nathan Vollrath
    Best base mount I’ve found

    I have prior experience using mostly 1” ball mounts, some plastic, some with rubber coatings, but I’ve always found that either they simply don’t hold tightly no matter how hard you crank the clamp, or the rubber coating peels, or occasionally the stem under the ball breaks off. To be fair, I’m using these on dirtbikes and offroad trucks and beating them pretty hard, but still….

    So far I have not gotten the Bulletpoint bases on anything really hardcore. However, unlike every other ball mount system I’ve used, these ones clamp tight with minimal pressure on the thumbscrews. Once you set it, it’s set! No wiggle, no jiggle, no working loose, no drooping. At least none so far!

    The four little bolts for bolting the mount to whatever you’re mounting on (in this case the Rubigrid on the dash of my truck) include nyloc nuts so they stay put. None of this is the cheapest on the market by a long shot, but as the saying goes, pay for quality once or pay for cheap prices every day.