The design for this new rifle was finalized in June 1995 with mass production put underway by the end of the same year.

Compared to the JW-15, the JW-103 adds a three-way, user-adjustable trigger, a feature generally exclusive to higher end rifles.

The trigger force, take-up, and break (sear contact patch area) are all adjustable via two threaded nuts and a set screw.

Contrary to common beliefs, the JW-103/105 did not employ a Mauser-style front-locking action found on the earlier JW-101 rifle.

The JW-105 began development in 1999 with the target of expanding into the overseas hunting market by designing a rifle that would better appeal to shooters who may prefer the more common .223 Remington over the 7.62×39mm round.