Rail B-9M "Goose" is designed to install lights series "Klesh" on the gun under the barrel. Works great, especially, if you have small rail and need to place tactical handle.
Difference between B-9M and B-9: on B9 you can place additional tactical handle. But weight of the B-9M smaller on 30 gram.
Original Zenitco product! Made in Russia.
Can be placed on: RIS/RAS
Weight: 41 gramm
Material: Unique Allow of Aluminum D16T