First Look: Sightron S-TAC 1-4.5x24 SR1 Service Riflescope

A low power variable optic designed with competition in mind.

posted on June 18, 2023
SIGHTRON S-Tac 1-4.5x24 SR1

Sightron is now selling the S-TAC 1-4.5x24 SR1 Service Riflescope, a new second-focal-plane (SFP). low-power variable optic, or LPVO. The reticle in the S-TAC consists of an etched-wire, 9-MOA circle that surrounds a single precise ½-MOA aiming point. This new riflescope was designed and engineered to perform in competitive rifle disciplines like the Civilian Marksmanship Program’s Service Rifle and the National Rifle Association High Power Rifle competitions. These shooting disciplines have various targets at distances from 100 all the way to 600 yards, with competitors take shots in varying positions like offhand, kneeling, and prone shooting positions. Points and time limits vary depending on specific shots taken. 

“We couldn’t be more pleased to offer this high performance riflescope to the competitive sport shooter,” said Mack Matsumoto, President of Sightron. “We are laser focused on developing the best in class performing riflescope on the market, and the new S-TAC SR1 is a reflection of that.”

S-TAC SR1 Features:

  • Sightron exclusive optical glass with  MC-333 multi coated lenses 
  • 30mm diameter aluminum main tube
  • Rated for up to 1000Gs of shock resistance
  • IPX7 dust and waterproof rating
  • Exclusive Sightron ExacTrack erector tube system
  • ¼-MOA adjustments for click value 
  • 100 MOA total elevation travel
  • 60 MOA total windage travel

S-TAC SR1 Specifications:

  • Magnification: 1-4.5X
  • Objective Lens: 24mm
  • Focal Plane: Second Focal Plane
  • Click Value: ¼-MOA
  • Length: 10.3 inches
  • Weight: 20.8 ounces
  • Parallax: Parallax Free at 150 yards
  • Minutes Per Revolution: 25
  • FOV: 110.0 to 25.3 ft at 100 yards
  • Eye Relief: 3.3 to 3.9 inches


The new Sightron S-TAC SR1 Service Riflescope has an MSRP of $499. Just like other products made by Sightron, the S-TAC SR1 are backed by a lifetime worry-free warranty. For more information on this new optic or other products made by Sightron, please visit



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