igcollectiblesDescription: Up for sale is a brand new, never-installed Mini Beryl Rear Sight Block (RSB), properly notched for gas tube alignment and designed to interface with the long optic rail used on full-size Beryl rifles. This is not surplus — it’s a new-production part made to original Polish military specifications. This RSB features the mounting cut and geometry required to accept the long top rail that spans from the rear trunnion to the gas block, commonly found on FB Radom Beryl rifles. It’s the correct part if you’re building a Mini Beryl clone that uses the extended Beryl-style optic rail. Item Details: Brand new – never installed or fitted Correctly notched for gas tube alignment Compatible with FB Beryl long top optic rail Machined to military spec with clean finish Not a surplus or demilled part Compatibility: This RSB is intended for Mini Beryl builds that utilize the full-length Beryl top rail system. Not compatible with standard AKM or AK-74 parts. May require gunsmith fitting depending on your barrel and trunnion setup.
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