RS Regulate AK-312M Rear Biased Lower Scope Rail

Manufactured by RS Products
SKU: AK-312M
MPN: AK-312M
Manufactured by RS Products
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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-312M lower scope rail is one of the most precise, rugged, and lightest weight you can find on the market. 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 rear biased lower rail is locked down, it isn’t going anywhere ensuring that your rifle stays zeroed with your favorite optic during recoil. The rear biased rail option allows you to place your optic as far rearward as possible and reduces weight compared to the full-length option. It is made from 6061-T6 aluminum and the modular design allows you to mount your optic directly over bore and allows you to get a proper eye relief with your scope. 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.

  • Lightweight
  • Quick detach
  • Excellent return-to-zero
  • Compatible with most AKM pattern rifles
  • Ideal for SAM7K pistols and SBRs

The AK-312M rear biased lower rail weighs just 2.88 ounces and is compatible with a large variety of AKM rifles. However, it is not compatible with FIME VEPR-FM 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. The unique locking system is machined to have the tightest tolerances possible so that every time it gets re-attached, your scope will be in the exact same position and you won’t need to mess with your zero.

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
MaterialAluminum - 6061-T6
TypeSide Mount
Weight2.88 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

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