Spotting Scope Arca Plate

NCStaccato · Friday at 5:57 PM

I have a MPA and a MDT chassis and neither are the same size arca as my spotting scope. Purchased a Vortex quick release plate hoping it was the same size, no luck.
I have a Fatboy tripod with an invert 60 head , I'm looking for a plate that can be connected without adjusting the clamp size?

_Windrider_ · Friday at 6:44 PM

NCStaccato said:
I have a MPA and a MDT chassis and neither are the same size arca as my spotting scope. Purchased a Vortex quick release plate hoping it was the same size, no luck.
I have a Fatboy tripod with an invert 60 head , I'm looking for a plate that can be connected without adjusting the clamp size?

The RRS plate will probably be your best bet. They also work in pic rails.

Mulepackhunter · Friday at 7:00 PM

I found the MPA integral Arca to be odd myself, not sure why they didnt try to match standard arca configuration? I just mounted an arca to my MPA problem solved but silly.

NCStaccato · Friday at 8:56 PM

My MDT Elite, Premier gen 2 and Vanquish seem to have the same size integral arca rail. If I could find a Arca plate to mount on my Spotting scope things would be easier.

Shootin25 · Friday at 9:21 PM

NCStaccato said:
My MDT Elite, Premier gen 2 and Vanquish seem to have the same size integral arca rail. If I could find a Arca plate to mount on my Spotting scope things would be easier.

How big of plate ?

NCStaccato · Friday at 9:33 PM

Just to fit on the bottom of the Cronus G2

https://athlonoptics.com/product/cronus-g2-uhd-dual-focus-20-60x86-45-degree/

Shootin25 · Friday at 9:37 PM

NCStaccato said:
Just to fit on the bottom of the Cronus G2

https://athlonoptics.com/product/cronus-g2-uhd-dual-focus-20-60x86-45-degree/

I see. Thought it was a screw fastened connection, but appears to be one piece?

Does the ARCA clamp need to be tightened when using the spotter? As in the ARCA seems smaller?

Shootin25 · Friday at 9:51 PM

Mulepackhunter said:
I found the MPA integral Arca to be odd myself, not sure why they didnt try to match standard arca configuration? I just mounted an arca to my MPA problem solved but silly.

I’ve observed the contrary. Have made several ARCA rails to spec and they match up perfect with the integral MPA rail.

NCStaccato · 2025-06-07T09:19:49-0400

Shootin25 said:
I see. Thought it was a screw fastened connection, but appears to be one piece?

Does the ARCA clamp need to be tightened when using the spotter? As in the ARCA seems smaller?

The vortex adaptor plate does have a screw / quick connect that screws into the base of the rail on the Athlon

Shootin25 · 2025-06-07T10:06:10-0400

@NCStaccato If you end up at a dead end, let me know. Got ARCA pieces laying around or can whip something up specific to your mount. I owe you for leading me to some much needed ammo!

Mulepackhunter · 2025-06-07T15:56:23-0400

Shootin25 said:
I’ve observed the contrary. Have made several ARCA rails to spec and they match up perfect with the integral MPA rail.

Ill have to measure it at some point but just having my bipod on one or the other they are different on my chasssis, I notice it in my bench vise and my bipod mount. (Accutac bipod)

NCStaccato · 2025-06-07T17:23:52-0400

Shootin25 said:
@NCStaccato If you end up at a dead end, let me know. Got ARCA pieces laying around or can whip something up specific to your mount. I owe you for leading me to some much needed ammo!

Appreciate the offer!

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