Updates to the TAC-308 rifle include the TAC-308A: an A3-5 stock and 20-inch barrel and the TAC-308B: an A-5 stock and 24-inch barrel, both modles include a detachable box magazine with thread cap. The TAC-308C includes an A-5 stock with hinged floorplate and 24-inch barrel but no thread cap. Designed for long-range scenarios, the TAC-300 is chambered in .300 Winchester Magnum with a heavy, match-grade 26-inch barrel with thread cap. Updates include the TAC-300A detachable box magazine; the TAC-300B with a hinged floorplate and the TAC-338 which is chambered in .338 Lapua Magnum with a heavy, match-grade 27-inch barrel. The TAC-338A includes a detachable box magazine and the TAC-338B includes a hinged floorplate.