The ST0066 Arca to Picatinny Adapter lets you mount a Picatinny accessory on an Arca Swiss rail. A common use is fitting an existing Picatinny bipod to a rifle with an Arca bottom rail, so you don't have to buy a new bipod.
It measures 2 inches long by 1.95 inches wide and weighs 3.5 ounces, so it adds very little weight if you leave it on the rail.
How it's made
It is machined and finished in black anodize to resist corrosion. Because it clamps to the Arca rail rather than being fixed to the rifle, you can slide it to wherever your bipod or accessory needs to sit and lock it in place.
Specs
| SKU |
ST0066 |
| Converts |
Arca Swiss rail to Picatinny |
| Size |
2 in long x 1.95 in wide |
| Weight |
3.5 oz |
| Material |
6061 aluminum |
| Finish |
Black anodize |
Fits
- Any Arca-style rail, adding a short Picatinny section
Doesn't fit
- It doesn't convert the other way. For Picatinny to Arca, use the Universal Picatinny to Arca Short ST0024 or Large ST0025
Installing and setting it up
Set the adapter on the Arca rail where you want the accessory, tighten it, and then mount your Picatinny bipod or accessory to it.
Common questions
I have a Picatinny rifle and an Arca tripod, so is this the right part?
No, you need an adapter that works in the opposite direction, and the Universal Picatinny to Arca Short ST0024 or Large ST0025 puts an Arca section on a Picatinny rail.
How much does it weigh?
It weighs 3.5 ounces, so it adds very little weight to the rifle.
Will it hold a bipod?
Yes, mounting a Picatinny bipod on an Arca bottom rail is the most common use for it.
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