Assault rifle conversion kit—folding gun stock assembly

An assault rifle conversion kit comprising:

• a stock assembly (C),
• a first handle assembly (D),
• a second handle assembly (E),
• a cover assembly (F),
• a reload handle assembly (B);
• a handguard assembly (A),
• wherein the reload handle assembly (B) comprises a reload handle base complement (14), a reload handle base (15) joined by refill handle screws (17), and a reload handle (16) having a threaded projection, wherein the threaded projection is secured into a threaded hole on the refill handle base (15);
• wherein the reload handle base complement (14) is connected in a horizontal orientation with regards to the assault rifle;
• thus, the reload handle is horizontally aligned with regards to the assault rifle;
• wherein the second handle assembly (E) comprises a tactical handle (44) having a graduation mechanism to graduate the second handle assembly a selected position between 0°, 45°, 90° and 135° with respect to an axis of a barrel;
• wherein the stock assembly (C) comprises an adjustable cheek support system (C3) having a continuous graduation and includes a stock plate (34) having a curved shape;
• wherein the stock assembly (C) further comprises a folding mechanism with a lock (C1) that allows folding the stock and a retractable telescopic button mechanism (C2) that allows graduation to users of different heights;
• wherein the folding mechanism with lock (C1) comprises:
• a base adapter stock (19) that is attached to a rear of the assault rifle and allows the stock to be folded up either to the right or to the left;
• a stock bolt (18) that secures the stock base adapter (19) to the weapon;
• a cylinder head base block (20) attached to the cylinder head base adapter (19) by a screw (21) that rotates at angles of up to 180°;
• a joint block (25), which houses a cylinder head base shaft (22) that allows the locking mechanism of the cylinder head to be released and deployed, the joint block (25) includes a slot where a cylinder head guide (28) and a guide core (52) are housed, the cylinder head guide (28) and the guide core (52) are permanently attached to each other and made of different materials;
• wherein the cylinder head base shaft (22) is cylindrical with section changes;
• wherein the section change secures the shaft (22) by the cylinder head fixing ring (51), which prevents the shaft from being expelled by a cylinder head base spring (23) and allows the shaft (22) to return to an original position;
• and
• wherein the cylinder head base shaft (22) allows the vertical movement of the union block (25) provided by the cylinder head base spring (23).