Tubb 2000

The Tubb 2000 rifle is a fully adjustable modular sports target rifle produced in the United States by the McMillan Brothers Rifle Company. It was designed and endorsed by 11-time NRA Highpower Rifle and ICFRA Palma World Champion David Tubb and Rock McMillan for long-range target shooting.
The Tubb 2000's barrel can be changed by the end-user, allowing the same rifle to support various calibers. Adjustable or user-changeable features include stock, sights, hand grip, trigger. It includes a quiet shock absorbing stock instead of a loud muzzle brake.
The successor to the Tubb 2000 was launched in 2017, and is called Tubb ATR.