[5] The Blaser R93 is a truly modular system built around an aluminium alloy frame, offering differing stocks and barrels varying length and thickness available in chamberings from .22 LR to .375 H&H Magnum/.416 Remington Magnum/.458 Winchester Magnum size.

[2] Per US importer armusa.com, http://armusa.com/SigarmsRifles6.htm "Also contributing to the Blaser's performance are its patented sear-free trigger mechanism and completely free-floated barrel."

The R93 straight-pull bolt action locks by a 14-lug radial collet in a 360 degrees groove in the barrel and is designed to withstand pressures significantly exceeding the Mauser 98–type bolt-action rifles.

The stressed parts are made out of hammer forged steel and plasma nitrided to provide corrosion resistance and mechanical strength.

Several different barrel profiles were also available, such as Standard, Octagonal, Semi Weight, "Stutzen", Match or Safari [6] Letters in parentheses corresponding stamping on the bolt head.

Owners were urged to have their rifles inspected by Blaser's US representative to see if their trigger unit was affected, and if so be changed from a non-stainless to a stainless one.

[citation needed] In August 2003, 41-year-old Norwegian Jan Sørlie had an accident where his R93 chambered for 8×68mm S exploded, resulting in loss of an eye and a skull fracture requiring titanium replacement.

[21] An investigation by the German DEVA institute concluded that handloaded .300 Weatherby Magnum ammunition had been used that greatly exceeded the maximum safe gas pressure for the round.

[22] In July 2009, Spaniard Jesus Nieto had an accident near Madrid in Spain where his R93 rifle chambered for 7mm Remington Magnum exploded, causing the bolt carrier to hit and damage his maxilar bone.

The accident was determined by the shooter to be due to faulty ammunition leaving a fired bullet stuck in the barrel, causing an explosion on the subsequent shot.

[20] In July 2014, 69-year-old Christer Svensson experienced an accident where his R93 chambered for .30-06 Springfield exploded while loading his rifle on a shooting range near Bollnäs in Sweden, resulting in the bolt hitting his face.

In August 2014, Svensk Jakt wrote that another Swede, Tony Kristoffersson, had experienced an explosion with his R93 while on a Beaver hunt the same year.

[24] The Swedish Blaser distributor later stated that while it is possible to pull the trigger without the bolt being fully locked into battery, the firing pin is designed such that it will not hit the primer with sufficient force to ignite the cartridge.