The Model 771 Magazine for STI 2011 Hi-Capa 5.1 features two tensioning screws on the back side of the holder that allow adjustment on the middle and end of the magazine. It's open front design keeps the index finger from touching the holder during reload, assuring the fastest reload possible. The 771 is adjustable to any angle within a 90 degree range.
The Model 771 Magazine for STI 2011 Hi-Capa 5.1 features two tensioning screws on the back side of the holder that allow adjustment on the middle and end of the magazine. It's open front design keeps the index finger from touching the holder during reload, assuring the fastest reload possible. The 771 is adjustable to any angle within a 90 degree range.