HB Industries

The Stribog A1/A2/A3 spring kit provides a crisp clean 4.5-5.0 lb trigger pull (down from 6.0-6.5 lbs factory trigger). Simply remove your factory trigger and disconnector springs and replace them...

Folding charging handle for Grand Power Stribog SP9A1 and SP9A3. Our folding charging handle is a drop-in replacement for the factory fixed length charging handle. Just as the name implies, this...

Our modular selector kit is the ultimate safety upgrade for your Grand Power Stribog SP9A1 and SP9A3. The kit contains an upgraded selector center shaft, two (2) selector levers, and one (1) selector...

Extended bolt stop for your Grand Power Stribog SP9A1/A2/A3. The release tabs on our extended bolt stop are 3.5mm wider (per side), and we have extended both tabs back toward the trigger guard by 4...

HBI Ambidextrous Charging Handle for the Grand Power Stribog SP9 A1/A2/A3. 23mm left handle – 16mm right handle 16mm left handle – 23mm right handle By comparison the factory...