Notes: The TRG-21 was designed by Sako to be the most accurate rifle available to the general public. The rifle is commonly seen in long-range competition, where it has done very well. The TRG-21 is chambered in 7.62mm NATO; and the TRG-41 is chambered in .338 Lapua Magnum; barrel length for the 7.62mm version is 26 inches, while for .338 Lapua it is 27.2 inches. The barrels are aluminum bedded with an oversized bedding surface. Stocks are of polyurethane inside a hard synthetic shell, and with an aluminum skeleton for reinforcement. The fore-end is of much the same construction, with a solid internal aluminum bar for reinforcement. The TRG-21/41 has an adjustable cheekpiece, a buttplate which is adjustable for height and for length of pull through the use of spacers, and a two-stage trigger adjustable for pull weight, length of travel, position within the trigger guard, angle, and lateral position. The safety catch is virtually silent and located within the trigger guard. Various different sight mounts may be used, and they attach to the receiver by use of a number of screw holes. Backup emergency iron sights are also available. Optional accessories include a night vision device adapter, muzzle brake/flash hider, and various cases and slings. A bipod is also an option, but not normally issued with the rifle. Both the TRG-21 and TRG-41 are designed to be just as easy to fire whether right- or left-handed.

In the early 2000s, the TRG-21 and TRG-41 were replaced by the improved TRG-22 and TRG-42; improvements were made to the stock, muzzle brake, and bipod. The barrel, formerly made by standard barrel manufacturing practices, is cold-forged on the TRG-22 and TRG-42. The TRG-42 also added a .300 Winchester Magnum chambering. A detachable bipod is now a standard feature of these rifles, sold with them instead of being an option. The muzzle is threaded, allowing the standard muzzle brake can be replaced with a more substantial heavy muzzle brake or a suppressor (or silencer, in the case of 7.62mm versions.) The receiver is now also cold-forged and is quite strong and rugged.

Twilight 2000 Notes: The Finns made the lives of anyone intruding on their territory quite miserable with these weapons. Starting in 1998, they were also supplied to the Swedish and the Latvians. The TRG-22 and TRG-42 are not available in the Twilight 2000 timeline; for that matter, many late-production TRG-21s and TRG-41s were built with wooden furniture instead of the advanced stocks produced until early 1998.

Merc 2000 Notes: Though most sales of the TRG-21 and TRG-22 were indeed to civilians, some were sold to police and the military. TRG-41 and TRG-42 were sold almost entirely to military concerns.

Notes: These two sniper weapons are meant for clandestine work. They are built around standard actions for a bolt-action rifle, with the addition of a sight mount that can use both Western or Eastern Bloc scopes and night-vision equipment. The stock is of plastic treated to be non-reflective. The biggest difference between an SSR and a standard sniper rifle is the suppressed barrel; the barrel is designed for durability, and since is uses gas baffles instead of bullet wipes, takes a very long time to wear out even when not using subsonic ammunition. The SSR-3 is normally when training future SSR-1 gunners, though it does have some other applications since it is less than half as loud as even an SSR-1 firing subsonic ammunition.