Arca Rail w/ R-Lock

This ARCA rail attaches to the forend of the Ridgeback stock only.  Assembly is easy, just remove the MLOK rails from the Ridgeback and drop the ARCA rail into the existing slots and bolt it down with the screws provided.  

  • Weighs 10 ounces
  • Overall length:  Short action length 14.25", Long is 13.47"
  • Made from 6061T6 Aluminum
  • Matte black, Hardcoat Anodized
  • Manufactured in the USA

This rail is coming soon for the Phoenix stock!


Ask a Question
  • Will this rail work with mdt or 419 bipod clamps

    You mean like this?  If so, yes.  This arca rail will work with any bipod clamps meant for an arca rail.

  • Struggling to find an arca to fit the phoenix. Will this work?

    Unfortunately it won't.  There is a 3 or 4" arca rail available from area 419 that will attach to the MLOKs on the bottom of the Phoenix.

  • What exactly is R-lock and does it require a special bipod arca clamp or will an area 419 clamp work

    Its just a pin that some clamps are now using that helps lock the rail into place.

  • How much torque do you recommend for these screws?

    We don't have a torque spec, just snug and a 1/4 turn past that.

Customer Reviews
5.0 Based on 4 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Customer Photos
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Rex P.
United States
I recommend this product

Arca rail R lock

I could not be more pleased. it is a solid fit for my grayboe stock with no Movement. Very impressed with the design of this rail. I will definitely have one with my next Grayboe stock.

Jason H.
United States United States
I recommend this product

Awesome product!

I had an Arca rail attached to my ridgeback stock but it was a modified m lok one and didn’t go back towards the mag well far enough. This one is perfect! Great fit and is going to do everything I want it to do

Forrest C.
United States United States
I recommend this product


Purchased for 16lb 32" barreled 300 RUM. This thing is rock solid. It is fit perfectly to cutouts for the mlok rails rather than attaching to then. Goes around front action screw so can stay mounted 100% of the time. This will support and rig you put it on. Also it lets me run my bipod about 2-3" forward of where i could using mlok slots. This really helps balance weight of long heavy barrel.

Grayboe Arca Rail w/ R-Lock ReviewGrayboe Arca Rail w/ R-Lock Review
United States United States
I recommend this product

Amazing service, prompt communication, can't say enough

I believe I miss ordered an item. Not only did they replace it promptly but were very understanding. I love their Ridgeline Stock and think they are a great business. Thank you so much! Oh and the ARCA rail was simple to install and works great.

Liquid error: Argument error in tag 'include' - Illegal template name