Sauer 90

Lore & Background

The Sauer 90 was released in 1982 as a successor to the Sauer 80, with the main changes being related to the trigger guard and stock. It was sold only in Europe, alongside the later Sauer 92, and production of both continued until 2006. The rifle uses a rear-locking bolt with three massive flapper locking struts, giving a short bolt travel but causing more brass case stretching during firing, which reduces reloading life of casings. The bolt has a 60-degree lift for easier scope use and a button allowing the rifle to be emptied with the safety engaged.

The trigger mechanism on early European and Colt models was complicated, later changed to a standard shotgun single-set trigger. The trigger itself has a special construction built on rollers, known for being complicated and sensitive to dirt, requiring regular cleaning to avoid misfires. A set trigger could be activated by pushing the trigger forward. The safety is placed on the tang of the stock, but the limited wood in that area makes it a weak spot prone to breaking if the rifle falls.

The barrel mounting uses threads but is headspaced with a separate hex key, allowing barrel changes with simple hand tools. The receiver has an empty chamber bolt hold open mechanism and steel bottom metal. The rifle is known for having a somewhat high weight compared to competing hunting rifles, and for being difficult to glass bed due to the shapes of the recoil lug and barrel nut.

Reader's Guide

The Sauer 90 represents a refinement of the technically complex Sauer 80 design, limited to the European market. Its significance lies in continuing the rear-locking bolt system that provides a short, smooth bolt travel, though at the cost of increased brass case stretching and sensitivity to chamber contaminants. The rifle's precision is noted as very good, leading to its use by hunters and sport shooters, and a sniper variant (SIG Sauer SSG 2000) was adopted by police and defense forces. The barrel change system, using a hex key for headspacing, foreshadowed later Sauer designs such as the Sauer 200 and SIG Sauer 202. The Sauer 90's legacy is tied to its role as an intermediate model between the original Sauer 80 and the later Sauer 92, all sharing the same action but with incremental stock and trigger guard updates. Its production until 2006 indicates sustained demand in Europe, despite the rifle's higher weight and maintenance requirements compared to competitors. The rifle's complicated trigger and sensitivity to dirt meant regular cleaning was necessary, but the later switch to a simpler shotgun single-set trigger addressed some reliability concerns.

Did You Know?

• The Sauer 90 uses a non-rotating bolt with three rear-locking flapper struts, giving a 60-degree bolt lift.
• The barrel can be changed using only simple hand tools and a hex key for headspacing.
• The rifle's tang-mounted safety is a weak spot due to limited wood in that area.
• The Sauer 90 was produced until 2006, alongside the later Sauer 92.