HB Industries CZ Scorpion EVO 3 1913 Stock/Brace Adapter

The factory Scorpion EVO 3 ships with a proprietary side-folding stock or brace housing that does not accept any aftermarket stock. The HB Industries 1913 Adapter swaps that housing for a low-profile billet aluminum block that ends in a standard 1913 Picatinny rear rail. From there any 1913-interface stock or brace bolts on, including the SBA3, Tailhook MOD2, Strike Industries FSA, Magpul SL-K, and folding stocks like the Sig MCX folder.

Construction is machined 6061-T6 aluminum hardcoat anodized to MIL-A-8625 Type 3, and the adapter weighs 4 oz. Install is press-fit using the same dovetail the factory folding housing rides on, so there are no set screws and no permanent modification to the upper receiver. A rubber mallet or deadblow gets the factory housing off; the HBI adapter taps in the same way.

This adapter is for the CZ Scorpion EVO 3 S1 and S2 pistol and carbine. EVO 3+ owners need HBI's dedicated EVO 3+ adapter instead, since the trunnion geometry changed on the new model. Pair the adapter with any 1913 brace or stock to finish the build.