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TA31-C-100413 Trijicon ACOG 4x32 BAC Scope - Dual Illuminated Green Crosshair 300BLK BDC TA31-C-100413

Manufacturer: Trijicon
SKU: TRI100413
Manufacturer part number: TA31-C-100413
UPC: 719307308305
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The Trijicon 4x32 BAC ACOG with 300BLK BDC Riflescope (TA31-C-100413) provides a dual-illuminated reticle using fiber optics and tritium for a bright aiming point in any light condition and the 300 blackout reticle allows the user to instantly switch between supersonic and subsonic ammunition without having to re-zero the optic. The 300 blackout reticle with merged aiming points has been optimized for simplicity and efficiency. The supersonic BDC (out to 600 yds.) has been merged with the subsonic BDC (out to 200 yds.) to provide one set of aiming points for both types of ammunition. The reticle drops are based on an average of commonly available off-the-shelf subsonic and supersonic ammunition from a 16" barrel. This BDC reticle is not limited to one or two specific bullets: a majority of commonly available ammunition will fall within the 2 MOA diamond aiming points. The 2 MOA diamonds offer a balance of speed and versatility based on the unique performance of the 300 Blackout caliber. The drops in MOA for each aiming point are provided for users who wish to develop their own handloads for use on firearms with a barrel of 16" or shorter, or for those who wish to deviate from the recommended zero distances.


  • Thumbscrew Flattop Adapter (TA51)
  • 4x32 Scopecoat (TA64)
  • LENSPEN (TA56)
  • Lanyard Assembly for Adjuster Caps (TA71E)
  • Trijicon Logo Sticker (PR15)
  • ACOG Manual
  • Warranty Card


  • Always-On, Always Ready, Battery-Free
  • Adjustable Brightness
  • Rugged, Reliable Housing Design
  • “Both Eyes Open” Design
  • Outstanding Clarity
  • Exact Target Distances & Holds
  • Combat Proven
  • Shock-Resistant
  • Waterproof



Objective Size:32mm
Reticle Pattern:Crosshair
Day Reticle Color:Green
Night Reticle Color:Green
Bullet Drop Compensating (BDC):Yes
Caliber:300 BLK
Bindon Aiming Concept™ (BAC):Yes
Illumination Source:Fiber Optics & Tritium
Power Source:Fiber Optics & Tritium
Eye Relief:1.5 in. (38.1mm)
Exit Pupil:0.32 in. (8.13mm)
Field of View (degrees):
Field of View (feet):36.8 ft. @ 100 yds. (12.27m @ 100m)
Weight:15.1 oz. (428.08g)
Mount:Flattop Thumbscrew Mount (TA51)
Housing Material:Forged Aluminum
Finish:Matte Black