Will this line up with the built in flanges of the Hero9? And once lined up, will the thumbscrew tighten enough to hold Hero in place?

I have the hero5 if the flanges aren't any different then fiment is good and tight, I use it on my mc apes with no issues.

Is it compatible with GoPro hero 11?

To my knowledge the mounts are interchangeable through the gopro series (3,4,session,5-8, etc

HSU Aluminum Extension Arm for GoPro Hero 12, Metal Adjust Arm Straight Joints Mount, Same Direction Straight Joints Mount for Go Pro Hero 11/10/9/8/7/6/5 Black, DJI Osmo Action and More(Black)

HSU Aluminum Extension Arm for GoPro Hero 12, Metal Adjust Arm Straight Joints Mount, Same Direction Straight Joints Mount for Go Pro Hero 11/10/9/8/7/6/5 Black, DJI Osmo Action and More(Black)

Product ID: 343795868

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Details

Brand
HSU
Colour
Black
Compatible devices
All brands and
Compatible phone models
Samsung Galaxy
Mounting type
GoPro Mount

📸Universal compatibility with all action cams

🔩Same direction pivot thumbscrew

🛠️Premium aluminum alloy build

Description

🎥 Elevate your action shots with precision and style — don’t just capture moments, own them!

COMPLETE MOUNTING KIT INCLUDED - Everything you need—long & short arms, thumbscrew, and wrench—ready to customize your rig instantly.
LIGHTWEIGHT WATERPROOF DESIGN - Carry less, shoot more—robust yet featherlight, designed to withstand all weather conditions.
RUGGED ALUMINUM ALLOY CONSTRUCTION - Engineered for durability and rust resistance, built to last through every adventure.
SEAMLESS SAME DIRECTION PIVOT JOINTS - Effortlessly align your shots with precision thumbscrew control for perfect angles every time.
UNIVERSAL ACTION CAMERA COMPATIBILITY - Works flawlessly with GoPro Hero 5 through 13, DJI Osmo Action, SJCAM, AKASO, and more.

The HSU Aluminum Extension Arm is a high-quality, rustproof aluminum mount designed for ultimate durability and precision. Featuring same-direction pivot joints and universal compatibility with all major action cameras, it includes a complete kit for easy installation and adjustment. Lightweight and waterproof, this extension arm is the perfect upgrade for professionals and enthusiasts aiming to capture flawless footage in any environment.

Specifications

ASIN	B08HMJD1YC
Additional Features	Adjustable
Best Sellers Rank	#56,158 in Sporting Goods ( See Top 100 in Sporting Goods ) #1,291 in Action Cameras & Accessories
Brand	HSU
Color	Black
Colour	Black
Compatible Devices	All brands and types of action cameras
Compatible Phone Models	Samsung Galaxy S9
Compatible devices	All brands and types of action cameras
Compatible phone models	Samsung Galaxy S9
Compatible with Vehicle Type	car, bike
Customer Reviews	4.5 out of 5 stars 1,096 Reviews
Enclosure Material	Aluminum
Item Dimensions	16 x 11 x 2.1 centimeters
Item Weight	0.08 Pounds
Manufacturer	HSU
Mfr Part Number	HGP16BC
Model Name	HGP16BC
Model Number	HGP16BC
Mounting Type	Seat Mount
Mounting type	Seat Mount
Shape	[UN]
Special features	Adjustable
UPC	612953826356
Water Resistance Level	Waterproof

Reviews

W**S

Gute Qualität

Passt und stabil - danke.

4.11.2025

J**S

Buen producto!’

Buenas piezas de aluminio , encajan perfectamente y dan más seguridad a la cámara

14.06.2025

S**E

Action Camera Metal Mounting

16.12.2024

P**A

Top

Davvero ottina qualita' tutto ok

28.11.2025

M**.

Well made

4.08.2025

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