I got one that was similar to this:

https://smile.amazon.com/TAOTRONIC-Professional-Massager-Percussion-Handheld/dp/B09B6T1L4R

The one I got is (maybe) discontinued. I also know this particular company was also banned by Amazon for paid reviews.

but... it is actually a really good gun, rechargeable and very powerful. It's also very similar to the one in the iFit workouts.

I would suggest searching Amazon and looking around. The link I gave is NOT shipped from Amazon, which is always a red flag for me. I paid about $100 with taxes and free shipping.

Generally all the guns are made the same by the same company and distributors just stick their name on them.