The Sako TRG M10 Sniper Weapon System was unveiled by Sako in October 2011. It was designed as a user configurable multi calibre modular system and does not share its receiver and other technical features with the Sako TRG line. It can switch between .308 Winchester (7.62×51mm NATO), .300 Winchester Magnum and .338 Lapua Magnum chamberings by changing the bolts, magazines, forends and barrels, to adapt to various requirements in the field. When it was first introduced, it was marketed for "military and law enforcement only".