The TRG M10 features a fully modular construction that allows for different calibers to be used by changing out the bolt and barrel assembly. Identification of modular components for different calibers can be done visually or from tactile indicators placed on each critical component. Each caliber-related part (magazine, receiver and barrel) can be easily recognized, avoiding any potential assembly mistake. The rifle also features ambidextrous, glove-friendly controls, an M-LOK handguard, and a fully adjustable trigger and rear stock assembly.

This model is chambered in .338 Lapua Magnum and features a 20-inch threaded barrel and an Coyote Brown finish. One 10-round universal magazine magazine is included.