Abstract: A cast trainer assembly (200) is adapted for use with a gymnastics apparatus (100). The cast trainer assembly (200) comprises a bar subassembly (202) coupled at opposing ends to a right-side brace subassembly (204) and a left-side brace subassembly (206). The subassemblies (204, 206) provide means for coupling the bar subassembly (202) to the gymnastic apparatus (100). The sub assemblies (204, 206) each include a side brace (208). The sub assemblies (204, 206) also each include slots or notches (220) spaced apart from each other. The slots or notches (220) are adapted to releasably receive the bar subassembly (202). The slots or notches (220) provide a configuration for positioning the subassembly (202) at a desired height and with distance being varied between the cross bar reference (126) and a bar (230).

Abstract: A kit, system and method for modifying an AK-variant firearm to permit bolt carrier pull back by the right or left hand. The kit, system and method includes a receiver cover including an arch-shaped crown and a pair of opposing retaining fins affixed to the bottom of the crown. One retaining fin has a slot that extends along the length of its upper portion. A guide track is affixed to the retaining fin having the slot. A charging handle assembly is secured to the guide track and is slidably engaged with retaining flanges and adapted to move along the guide track. An auxiliary charging handle is affixed to, and projects from, the slide. An engagement pin affixed to the slide projects inwardly to extend through the slot to engage the bolt carrier and move it when the charging handle is pulled.

Abstract: A transponder key assembly is provided with a key blade and head assembly, with the head formed with a transponder holder opening therein from a face of the head and a separable transponder carrier matingly configured to the opening and adapted to be received into and be removable from the opening so as to prevent separation of the transponder from the key blade and head assembly to preserve the transponder for use in a subsequent key blade and head assembly.

Abstract: A transponder key assembly is provided with a key blade and head assembly, with the head formed with a transponder holder opening therein from a face of the head and a separable transponder carrier matingly configured to the opening and adapted to be received into and be removable from the opening so as to prevent separation of the transponder from the key blade and head assembly to preserve the transponder for use in a subsequent key blade and head assembly.