HK Slim Forearm

This is an HK91 forearm modified to fit the GSG carbine. The usual HK indestructible composite plastic with steel insert in the pin area. These are available nowhere else. I am modifying each one individually. These are new parts being re-worked into forearms for the GSG.


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This item only fits the versions of the GSG with a metal receiver.

If your carbine has a polymer receiver it will not fit!