TA31RCO A4CP Trijicon ACOG 4x32mm Scope for the M4 with TA51 20" Barrel Base

Item # WX2-124405

Trijicon® ACOG® 4x32mm Scope for the M4 with TA51 20" Barrel Base is red-dot fast, scope accurate to 800 m!

Hit fast in any light at nearly any range. The revolutionary Trijicon ACOG™ (Advanced Combat Optical Gunsight) combines traditional, precise distance marksmanship with close-in aiming speed. Basically red dot speed and scope precision in a platform so rugged, so field-proof its the official issue of US special operations command.

The ACOG gives you the fast target acquisition, huge exit pupil and long eye relief of a red dot scope without any worry of a battery failing, because there isn't one! The revolutionary dual-illumination tritium / fiber optic lamp gives you brilliant, self-adjusting illumination in any light conditions and is guaranteed for up to 15 years. You've always got the reticle at exactly the right brightness... no fiddling! The built-in bullet drop compensator and 4X magnification improve both target identification and hit probability.


  • Bindon Aiming Concept™ (BAC) allows you to sight with both eyes open for rapid target acquisition and maximum situational awareness all while still taking full advantage of 4X magnification
  • Thumbscrew flattop adapter
  • ACOG thumb screw
  • 4 x 32 RCO killFLASH® anti-reflection device to offer clear shots without a distorting glare
  • Adjuster cap lanyards to keep from misplacing caps
  • 4 x 32 scopecoat to protect from scratches and other impact
  • Trijicon logo sticker
  • RCO manual
  • Warranty card.
Durable details make it tough enough for serious tactical use:

  • Adjustment at 100 yards = 2 clicks per inch
  • F.O.V. @ 100 yds. is 7 ft.
  • Magnification: 4x
  • Objective lens: 32mm
  • Red day / night reticle color
  • 1.5 mm eye relief
  • 8 mm exit pupil
  • Waterproof to 100 ft... dry nitrogen purged to minimize fogging
  • Military grade 7075-T6 aircraft aluminum alloy housing makes this system nearly indestructible
  • Red-colored Chevron reticle with 800 m bullet drop compensator calibrated for .223 from the 20" M16A4 barrel
  • Flattop mount TA51 mount fits M16A4 uppers
  • Measures 5 4/5" long and weighs 9.9 ozs.
  • Proudly made in the U.S.A.

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