RS Regulate AK-303M Full-Length Lower Scope Rail - AKM

Manufactured by RS Products
SKU: AK-303
MPN: AK-303
Manufactured by RS Products
11 Reviews

In Stock

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Note: This is only the lower rail. The upper optic mount must be additionally purchased to use your optic.

The RS Regulate modular scope mounting system makes mounting optics to your AK-47 pattern extremely easy. This 2nd generation AK-303M lower scope rail is one of the most precise, rugged, and lightest weight you can find. However, the real claim to fame is the unique titanium-based locking system that is extremely low profile and attaches directly to the side mount on your receiver. Once this full length lower rail is locked down, it isn’t going anywhere ensuring that your rifle stays zeroed with your favorite optic. The full-length rail option allows for the widest range of adjustment, so you can get proper eye relief with your scope. It is made from 6061-T6 aluminum and the modular design allows you to mount your optic directly over bore. All you need is an upper optic mount compatible with your favorite red dot or scope and you are ready to head to the range.

Full Compatibility List:

  • Russian
  • Bulgarian
  • Polish
  • AK Master Mount
  • Robinson Arms
  • Molot
  • Saiga
  • Izmash
  • SGL
  • SLR
  • WASR
  • WASR-10
  • WASR-10GP
  • WASR 10
  • Saiga-M
  • KVAR
  • FIME
  • Definitive Arms
  • DAKM
  • AKX-9
  • DAK-74
  • AK-100
  • DA Lite Rail

The AK-303M front biased lower rail weighs just 3.5 ounces and is compatible with most Russian and Bulgarian pattern rifles with factory side mount rails. However, it is not compatible with FIME VEPR-FM rifles with factory folding stock. With the AK-300 line of lower rail mounts, you can easily remove your optic for storage and retain zero the next time you attach it at the range.

RS Regulate was built on the idea of providing customers with a solid and dependable way to customize their AK pattern rifles with any optics they want from an ACOG to full on rifle scopes. After years of testing and researching, they came up with the AK-300 modular mounting system which allows a huge variety of customization in terms of optics positioning. This two-piece design allows you to choose the lower and upper rail systems to fully personalize your setup.

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BrandRS Products
ManufacturerRS Products
MaterialAluminum - 6061-T6
TypeSide Mount
Weight3.5 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

11 reviews

  • 4 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Excellent rail!


This is actually the first optic rail I've ever purchased for my AK but I'm very pleased with it and have nothing bad to say about it at all!

fast delivery


High quality product,nice finish, light weight.

Highest quality / fast shipping


Item was perfect for my AK 47, is of the highest quality and installed without issue. It was shipped from Texas and I received it in Michigan two days later!

RS AK303


Perfect for my Eotech 512 and 3x magnifier.Very sturdy and lightweight.

RS Rail


The RS rail is a fantastic option for solidly mounting optics on your AK patterned rifle. The mount clamps down tight and holds a solid zero even after repeatedly removing it. Would absolutely recommend.

The best AK side mount around


This is a great side mount for the AK, I know after trying a few others with poor results. It's light weight, solid quality, easy to adjust, maintains zero when removed and replaced, and co-witnesses with stock iron sights (using AKM mount for aimpoint). A little more than I wanted to spend for a mount but after trying the cheaper alternatives, I can say it was worth the money.



This mount is absolutely perfect, it attaches to the rail with an adjustable fit and with the chosen top mount I was able to align it exactly on bore centerline. Everything about the mount is as advertised and well made. It's amazing how well it holds center after removal and reinstall. Wish I had discovered this sooner and the cost is well worth it.

RS AK303


Perfect for my Eotech 512 and 3x magnifier.Very sturdy and lightweight.

RS Regulate Rail


Excellent rail! Solid fit on all my AK's


by -

Great high quality product that holds zero after removal and reinstall.