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Current: product | Product: rt-mount-lt-mount
Studio shot of Beastgrip RT and LT Mounts — modular aluminum handle mounts designed for Beastcage 16 Series and future iPhone cages, compatible with NATO rails and ARRI rosette accessories.
Studio shot of Beastgrip RT and LT Mounts attached to bottom of Beastcage for iPhone 16 Pro or 16 Pro Max, facing forward — showcasing front-facing dual mount configuration for flexible rig customization.
Beastgrip RT and LT Mounts attached to bottom of Beastcage for iPhone 16 Pro or 16 Pro Max with two Beastgrip side handles mounted via NATO rails — front-facing dual-handle setup for stable and ergonomic mobile video shooting.
Beastgrip RT and LT Mounts attached to top of Beastcage for iPhone 16 Pro or 16 Pro Max, facing rear with two Beastgrip side handles mounted via NATO rails — full rig secured to Beastgrip BT-60 mini tripod using Beastgrip Quick Release Plate for professional mobile video production.
Beastgrip RT Mount with side handle attached via ARRI rosette on Beastcage for iPhone 16 Pro or 16 Pro Max, mounted on tripod using Beastgrip Quick Release Plate — stable and customizable iPhone rig setup for handheld and tripod use.
Beastgrip LT Mount with side handle attached via ARRI rosette on left side of Beastcage 16 Pro Max — modular iPhone rig setup for stable handheld video shooting
Lifestyle shot of Beastcage for iPhone 16 Pro or 16 Pro Max with RT and LT Mounts facing rear, dual Beastgrip side handles, and 0.75X wide-angle lens — mounted on tripod via Beastgrip Quick Release Plate and filming with Beastcam app for cinematic mobile content creation.
Lifestyle shot of Beastcage rig mounted vertically on tripod via Beastgrip RT Mount, with side handle, 0.75X wide-angle lens, and Beastcam app — vertical iPhone video rig for cinematic mobile content creation.
Lifestyle shot of Beastcage rig mounted vertically to tripod via Beastgrip RT Mount, with LT Mount attached to the rig and side handle mounted on RT Mount — vertical mobile video setup with 0.75X wide-angle lens and Beastcam app for iPhone filmmaking.
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For Beastcage 16 /17/ S26 Ultra Series

Vendor:BEASTGRIP

RT Mount + LT Mount

Sale price$64.99 USDRegular price $79.98 USD

BGA163-NR
Type
Type: RT + LT - Right and Left Side Mounts
In stock, ready to ship
  • Dual-handle configuration with RT and LT Mounts
  • Mount handles to both sides of your Beastcage for iPhone 17 and 16 Series
  • Supports NATO and ARRI rosette mount handles
  • RT Mount functions as a vertical tripod mount
  • Includes 1/4"-20 and 3/8"-16 threaded mounts with locating pins
  • Built from lightweight, black-anodized aluminum

Create the ultimate iPhone filmmaking rig — your way.
With both the RT and LT Mounts installed, you can fully customize your Beastcage for iPhone 17 and 16 Series (and future models) to match your shooting style. Whether you need a dual-handle setup, a perfectly balanced handheld rig, or want to configure for vertical and horizontal shooting, this combo delivers unmatched flexibility.

Both mounts include standard NATO rails that can be used with horizontal or vertical handles. When removed, the detachable NATO sections reveal ARRI rosette mounts for expanded compatibility with pro gear. Each mount can be installed on either the top or bottom of your cage, and the RT Mount can also be used as a vertical tripod mount. With built-in 1/4"-20 and 3/8"-16 threads and locating pin slots, this setup gives you full control over accessory placement.

Package content

  • RT Mount (Right Side Mount) x 1
  • LT Mount (Left Side Mount) x 1
  • Hex Key and Mounting Screws

Compatibility

Compatible with Beastcage 16 Pro, Beastcage 16 Pro Max, Beastcage 17 Pro, Beastcage 17 Pro Max and future Beastcage models

Specs

  • Size: 73mm x 102mm x 47mm (2.87in x 4in x 1.85in) Adjustable
  • Weight: 70 g (2.8 oz) / each
  • Material: Machined 6061-T6 aluminum with black anodized finish
  • Standard NATO Profile
  • Standard Arri Rosette Profile
  • 1/4"-20 and 3/8"-16 threaded holes with locating pin slots
  • Attaches with a single 1/4"-20 screw and locating pins

 

Built for

Product details

Description

Create the ultimate iPhone filmmaking rig — your way.
With both the RT and LT Mounts installed, you can fully customize your Beastcage for iPhone 17 and 16 Series (and future models) to match your shooting style. Whether you need a dual-handle setup, a perfectly balanced handheld rig, or want to configure for vertical and horizontal shooting, this combo delivers unmatched flexibility.

Both mounts include standard NATO rails that can be used with horizontal or vertical handles. When removed, the detachable NATO sections reveal ARRI rosette mounts for expanded compatibility with pro gear. Each mount can be installed on either the top or bottom of your cage, and the RT Mount can also be used as a vertical tripod mount. With built-in 1/4"-20 and 3/8"-16 threads and locating pin slots, this setup gives you full control over accessory placement.

Package content
  • RT Mount (Right Side Mount) x 1
  • LT Mount (Left Side Mount) x 1
  • Hex Key and Mounting Screws
Compatibility

Compatible rigs:

Compatible Handles:

Specs
  • Size: 73mm x 102mm x 47mm (2.87in x 4in x 1.85in) Adjustable
  • Weight: 70 g (2.8 oz) / each
  • Material: Machined 6061-T6 aluminum with black anodized finish
  • Standard NATO Profile
  • Standard Arri Rosette Profile
  • 1/4"-20 and 3/8"-16 threaded holes with locating pin slots
  • Attaches with a single 1/4"-20 screw and locating pins
Studio shot of Beastgrip RT and LT Mounts attached to the bottom of the Beastcage for iPhone 16 Pro or 16 Pro Max, configured as front-facing mounts — compatible with handles using NATO rail or ARRI rosette connections for full rig customization

RT+LT Mounts

(SKU:BGA161-NR)

For complete customization, pairing both mounts gives you maximum flexibility in how you set up your rig. Add handles on both sides and fine-tune your layout to match your shooting style.

Studio shot of Beastgrip RT Mount attached to the top of the Beastcage for iPhone 16 Pro or 16 Pro Max, facing the back side — compatible with handles using NATO rail or ARRI rosette for flexible mounting options.

RT Mount

(SKU: BGA161-NR)

Attach handles to the right side of your rig, or use the mount to secure your Beastcage vertically on a tripod.

Studio shot of Beastgrip LT Mount attached to the top left side of the Beastcage for iPhone 16 Pro or 16 Pro Max, facing the back side — rig mounted on a tripod using the Beastgrip Quick Release Plate, with support for NATO rail and ARRI rosette handles.

LT Mount

(SKU:BGA162-NR)

Add handles to the left side of your rig for extra support, balance, or a dual-handle setup — perfect for customizing your rig to match your shooting style.

Pro Mounting Made Easy

Built from precision-machined aluminum, our RT and LT Mounts bring industry-standard ARRI rosette and NATO rail compatibility to your Beastcage. Easily add your favorite handles and dial in the perfect rig for any shooting style.

Trusted by Creators Worldwide

Filmmakers, photographers, and content creators rely on Beastgrip to push the limits of mobile creativity. See what they have to say!

All Reviews

Customer Reviews

Overall rating: 5.0 / 5 from 26 reviews.

Customer photo review of RT Mount + LT Mount

These in my opinion are THE best arms to go with... they are MUCH more versatile than the "L" arms.WAY more customizable. A+

Nathan M. 5/5 Verified

Customer photo review of RT Mount + LT Mount

Hi Beastgrip! The Lt/Rt Mounts are excellent! One possible issue is while they work perfectly on the iPhone 17 Pro's cage, on the BeastMod, only the Lt side has 1/4-20 hole/pegholes for the Lt Mount. The Rt side of the BeastMod does not have 1/4-20 hole/pegholes for the Rt Mount. There may be times I might want to hand-hold the BeastMod as well. I am sure I can work around this, but you might consider remedying this by giving the BeastMod a place to attach the Rt Mount (even if it means only fitting one of its two pegs). If you would like to discuss this you can contact me personally via Lkgraves111@gmail.com. Thank you!

Lennie G. 5/5 Verified

Customer photo review of LT Mount

TH!

Petru R. 5/5 Verified

Customer photo review of RT Mount

Very solid piece. But since I’m using it with an older cage (xs iPhone) I had to place some rubber pieces between the cage and the arm due to the pin slots. Overall happy on the design and use.

Bradford S. 5/5 Verified

Customer photo review of RT Mount + LT Mount

The Beastcage for iPhone 16 Pro Max is everything you think it should be! I included the LT and RT sidemounts when I bought the cage and I'm glad I did. Love them!

Ronnie T. 5/5 Verified

Customer photo review of RT Mount

Even though it’s not listed to work with beastgrip pro where there is a will there is a way. Wanted more of a grip and this mount works perfect with or without side handle.

John I. 5/5 Verified

Good product!

Douglas B. 4/5 Verified

good quality

Bernhard H. 5/5 Verified

Items are great!

Anthony H. 5/5 Verified

Hi Beastgrip! The Lt/Rt Mounts are excellent. One possible issue is while they work perfectly on the iPhone 17 Pro's cage, on the BeastMod, only the Lt Mount has 1/4-20 hole/pegs. The Rt Mount does not. There may be times I might want to hand-hold the BeastMod as well. I am sure I can work around this, but you might consider remedying this by giving the BeastMod a place to attach the Rt Mount. If you would like to discuss this you can contact me personally via Lkgraves111@gmail.com. Thank you!

Lennie G. 5/5 Verified

I have thoroughly enjoyed setting up the beast grip.

Paul F. 5/5 Verified

Producto de muy buena calidad, estan muy bien construidos y son muy versátiles, Beastgrip son un gran referente para los filmmaker, siempre son mi primera opcion.

Mohamed M. 5/5 Verified

Producto de muy buena calidad, estan muy bien construidos y son muy versátiles, Beastgrip son un gran referente para los filmmaker, siempre son mi primera opcion.

Mohamed M. 5/5 Verified

Very good quality

Gilbert E. 5/5 Verified

Solid, flexible ser up. Was thinking of adding a handle, but I don't see the need after install.

Edwin M D. 5/5 Verified

Good

Sung-jin H. 5/5 Verified

Top

Bernhard H. 5/5 Verified

As usual, robust build quality. Immaculate finish and adds so much versatility to a rig!

Louis-philippe G. 5/5 Verified

merci! service client incroyable

Alice C. 5/5 Verified

I've been using your products for a few years now and have recently added to my current setup. The Beastcage for my iPhone 14 Pro Max is the heart and soul of my production. The filter adapter used for my circular polarizer gives me greater image control. The benefits of this and more can be seen in productions like the one below (follow the link). https://youtu.be/gIphar9xdMg Best regards and keep up the great work, Kevin Dove

Kevin D. 5/5 Verified

Added something new to my photography gear

Donald L. 5/5 Verified

This bracket was recommended by support to add a side handle to the left side of the Beastgrip Pro, and it does so very nicely! I especially love the rosette and tons of mounting holes. Well designed!

Brennish T. 5/5 Verified

Solid. A fantastic accessory Keeps the cage light so you don’t need an outer cage.

Robert S. 5/5 Verified

Very solid and well built, attached easy peasy on my Beastgrip Very very happy with the purchase!

Roger H. 5/5 Verified

Awesome build quality and in a pinch these work just fine as handles.

Robert B. 5/5 Verified

Great products

Josh R. 5/5 Verified