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Trijicon Tennebrex Anti-Reflection Device for 4x32 RCO ACOG Scope
$77.28 $53.89 Save 30%
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Most Helpful Positive Review killFlash add on
I had this on my RCO A4 (USMC identifier for an ACOG with a killFLASH for either the M4 or M16A4) while deployed to Iraq in 2007. While I was not on any dismounted patrols the product works as advertised. There is no glint from the objective lens when secured properly on your ACOG. I took my rifl...
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Most Helpful Negative Review Does not hold up to the Trijicon name for ruggedness
On my first outing with the killflash, the honeycomb pattern was brushed up against some brush and dented. The ACOG design is fairly bombproof but this specific item does not hold the same standard. It looks cool and ends length to the ACOG but I’m not sure it is as good as it’s billed as.
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It fits...sorta...kinda

by RedRiot, Verified Owner from AR, United States Written on December 17, 2024
I bought this for my 4X ACOG and it's an afterthought design through and through. I understand the design constraints due to the angled shroud on the front of the ACOC, but that doesn't change how cheap this item seems considering the price and that its intended for a combat-ready application. I recommend it only due to the lack of alternatives.
Pros:
  • It works as a killflash
Cons:
  • Expensive
  • fits loose
  • Mounting is not confidence inspiring
Best Used for:
  • acog
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Tennbrex Kill Flash

by KodakMoment, Verified Owner from CA, United States Written on September 15, 2024
It works from a functional standpoint, but my OCD hates the fact that it doesn't sit flush; it is angled down, so just keep that in mind.
Would recommend: No
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Does not correctly fit 4X32 TA02 ACOG

by Lupin, Verified Owner from FL, United States Written on June 22, 2024
The bevel on the alignment leg does not match with TA02 4X32 ACOG so it wobbles both laterally and longitudinally.

It will have to be modified by a combination of sanding and installing tape to shim the gap between the killflash and the ACOG for it to fit flush.

Pretty frustrating considering this is made of plastic and was by no means cheap.
Pros:
  • Doesn't obstruct view
Cons:
  • Cheap construction
  • fit / security
Would recommend: No
Was it helpful to you? Yes | No

fits perfectly

by Joseph Cunningham, Verified Owner from AR, United States Written on March 5, 2024
fits perfect in my Acog scope. Price was good for value also.
Would recommend: Yes
Was it helpful to you? Yes | No

Tennebrex Anti-Reflection Device for 4x32 RCO ACOG Scope

by smorgan345, Verified Owner from GA, United States Written on December 31, 2023
Fit well, easy to take on and off and it's secure. The elastic band seems strong and should last a long time but I can't say for sure since I just got it. Simple effective design.
Would recommend: Yes
Was it helpful to you? Yes | No

Henry Striano

by Hank S., from NJ, United States Written on October 23, 2023
Works well. Fits like it suppose too. I would recommend this product to anyone looking for a Anti Reflection Device.
Would recommend: Yes
Was it helpful to you? Yes | No

Custom fit for a necessary add-on

by DomG, from OR, United States Written on August 2, 2023
This helps to make the perfect optic even better. The device fits perfectly into the objective lense without harming the ACOG. Our pre-911 M68s & BINOs were notorious for reflection.I've never seen a rubber ORing stretch so far & not break.
Pros:
  • strength
  • elasticity
Cons:
  • None
  • custom fit
Best Used for:
  • 4x32 ACOG
Would recommend: Yes
Was it helpful to you? Yes | No

Loose fitment. Just an overall "OK" for this.

by Major Richard, from TX, United States Written on June 21, 2023
My application is on my GI spec ACOG.The fitment is loose. The elastic band is all that keeps it from falling out. Perhaps that is "by design" and there is some benefit in being loose. A molded-in groove to hold an outside diameter O-ring would not have made this cost more as it would be grooved during the moulding process. This doesn't affect the performance, just makes it seem like it's a cheap Chinese product instead of something Trijicon produced.
Pros:
  • Does what it's supposed to do.
Cons:
  • Loose fitment.
Would recommend: Yes
Was it helpful to you? Yes | No

Good Product!

by Alex, Verified Owner from MN, United States Written on September 30, 2022
This item fits the Trijicon TA31 ACOG scope perfectly. It's great a reducing how much light is reflected off the objective lens. Don't let those deer see your scope glare! I would very much recommend this product to anyone with a Trijicon ACOG TA31.
Pros:
  • Easy Insallation
Cons:
  • price
Best Used for:
  • scope
Would recommend: Yes
1 of 1 found the following review helpful.
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Not Trijicon quality

by Willnasty, Verified Owner from CT, United States Written on March 8, 2022
The thing feels like its worth $10-$20 rather than $50-$60. I was literally able to bend the cage with my fingernail. The cage material feels like cheap plastic packaging and definitely wouldnt hold up to anything other than range use.
Pros:
  • Reduces glare
Cons:
  • Cheap
  • easy to break
Best Used for:
  • Range use
Would recommend: No
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No
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