Abstract: An adjustable spent cartridge casing deflector includes a deflector body directly attached on the firearm; wherein the deflector body includes a front side having a deflecting surface facing an expected trajectory of spent cartridge casings and being near an ejection port; wherein the deflector body is rotatably arranged on the firearm via an adjustable axis to adjust a direction of the deflecting surface; wherein the adjustable axis is configured to be rotated for selectively tightening or untightening the deflector body mounted on the firearm.

Abstract: A firearm magazine for storing and dispensing cartridges including an elongated housing defining a cartridge chamber, the housing having a distal end comprising a tapered interior space and a pair of guiding lip, a proximal end formed at an opposite side of the distal end, side walls comprising a first side wall, a third side wall, a second side wall integrally extended between the first and third side wall, and a fourth side wall integrally extended between the first and the third side wall, each of the side walls extending between the distal end and the proximal end; an outermore shell seamlessly molded over an outer face of the housing; wherein the housing comprises a plurality of witness holes formed on at least one of the side walls or formed on all of the side walls;

Abstract: Present invention discloses a rifle charging handle where one or two polymer pieces are made to fit over a T distal end of a main rigid body. A small protrusion on a hook shape latch, with limited elasticity, provides the locking mechanism to the upper receiver. The polymer pieces are secured by screws or other means; they provide a cost-effective option for ambidexterity variation and reduce metal wear on the upper receiver. The polymer pieces can also be secured to the main rigid body via a click-tab/click-hole mechanism. Other composite materials can be used to make the polymer pieces as long as they provide substantially similar rigidness and limited elasticity.

Abstract: Present invention discloses a rifle charging handle where one or two polymer pieces are made to fit over a T distal end of a main rigid body. A small protrusion on a hook shape latch, with limited elasticity, provides the locking mechanism to the upper receiver. The polymer pieces are secured by screws or other means; they provide a cost-effective option for ambidexterity variation and reduce metal wear on the upper receiver. The polymer pieces can also be secured to the main rigid body via a click-tab/click-hole mechanism. Other composite materials can be used to make the polymer pieces as long as they provide substantially similar rigidness and limited elasticity.