Abstract: A turning holder enabling an easy operation and a convenient use without the need for repeated mounting and dismounting is provided. The turning holder comprises a base (11), a holder body (12), and a rotary body. A base sleeve (110) is provided on the base (11). A holder sleeve (120) is provided on the holder body (12). The rotary body includes a shaft sleeve (5), a clamping sleeve for rotary shaft (8), a pressure ring (9) and a locking means. The clamping sleeve for rotary shaft (8) is sleeved outside at a groove around an end of the shaft sleeve (5). The holder sleeve (120) is sleeved on the shaft sleeve (5) in a staggered position relative to the clamping sleeve for rotary shaft (8). The base sleeve (110) is sleeved around the clamping sleeve for rotary shaft (8) and fixedly connected therewith. The pressure ring (9) is sleeved around an end of the shaft sleeve (5) and presses the clamping sleeve for rotary shaft (8) from outside.

Abstract: A turning holder enabling an easy operation and a convenient use without the need for repeated mounting and dismounting is provided. The turning holder comprises a base (11), a holder body (12), and a rotary body. A base sleeve (110) is provided on the base (11). A holder sleeve (120) is provided on the holder body (12). The rotary body includes a shaft sleeve (5), a clamping sleeve for rotary shaft (8), a pressure ring (9) and a locking means. The clamping sleeve for rotary shaft (8) is sleeved outside at a groove around an end of the shaft sleeve (5). The holder sleeve (120) is sleeved on the shaft sleeve (5) in a staggered position relative to the clamping sleeve for rotary shaft (8). The base sleeve (110) is sleeved around the clamping sleeve for rotary shaft (8) and fixedly connected therewith. The pressure ring (9) is sleeved around an end of the shaft sleeve (5) and presses the clamping sleeve for rotary shaft (8) from outside.

Abstract: An eccentric handle device which can be adapted for guiding rails of different sizes includes a base body (3), a pressure block (4), a pull rod (5), a pin (6), an eccentric handle (8) and a nut (1). The base body (3) is matched with the pressure block (4). The rod (5) passes through the base body (3) and the pressure block (4) respectively. One end of the rod (5) is movably connected with the eccentric handle (8) via the pin (6), the other end crosses the base body (3), and the rod is matched with the nut (1) by thread. The distance between the pressure block (4) and the base body (3) can be adjusted by rotating the nut (1), thus the device can be applicable to guiding rails of different sizes. The device can be widely used in the field of firearm aimer.