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7/20/2026 6:12:43 PM EDT
[Last Edit: Joguwa86][Edited]
I recently sold a salty old TA33 on the EE, and the buyer messaged me and said he couldn’t find a serial to send it back to Trijicon for a refurb.

I looked at the listing pics and I’ll be damned, I can’t see any serials anywhere on the body.

It was a real TA33; never even heard of a fake one and I’ve handled enough real ones to know. But I didn’t buy it new, it had been previously painted, and I’m trying to figure out what the heck is going on here. Did the old TA33’s not have serials stamped into the body like on a TA31?

Photos here.

7/20/2026 6:29:00 PM EDT
[#1]
I no longer have it but the last TA33 I owned had a serial number stamped in 2 places
7/20/2026 6:34:17 PM EDT
[Last Edit: Brahmzy][Edited] [#2]
I have / have had a lot of ACOGs - every one I've had was stamped both on the front body casting and the rear eyepiece casting.  These are mostly post-2010 experiences.
7/20/2026 6:42:56 PM EDT
[#3]
OP, did you purchase this new from a reputable dealer or used?
7/20/2026 6:57:50 PM EDT
[#4]
If it was a very old TA01 I might believe it.

This would have me a little sketched out.
7/20/2026 7:02:36 PM EDT
[#5]
Quote History
Originally Posted By thunderopossom:
If it was a very old TA01 I might believe it.

This would have me a little sketched out.
View Quote

I totally agree, it sounds sketchy but take a look at my pics. It’s clearly a real Trijicon product. I just feel like an asshole because I don’t know what Trijicon will tell this guy when he contacts them about refurbishing.
7/20/2026 7:45:47 PM EDT
[#6]
I own two TA33's.  One has the serial# stamped into the left side of the scope body, and also on the left side of the eyepiece.  The second has the serial# stamped on the underside of the scope body and also on the underside of the eyepiece.  So over time Trijicon has changed where the serial number is located.
7/20/2026 7:46:55 PM EDT
[Last Edit: GalloRosso][Edited] [#7]
That looks to be a very early model as it doesn't have the newer RMR attachment points.

I found an early manual online and the photo in it doesn't appear to have a SN on the sight.

Page 11 figure 5

TA33 Manual

Also found this picture from an online sales site, hopefully not the same exact optic as yours
Attached File
7/20/2026 8:26:53 PM EDT
[Last Edit: ScoutH57][Edited] [#8]
@Joguwa86

Tell him to look on the  very bottom where the eyepiece bolts to the rest of the body.

To the rear of the mount(rear meaning toward the shoulder of it was mounted on a gun)


I’ve had a couple old enough to not have the RMR mount bosses etc.

I don’t remember when the ta33 came out but it’s been a while, there’s a couple design changes
7/20/2026 8:53:33 PM EDT
[Last Edit: GalloRosso][Edited] [#9]
I think they came out in ‘07 or ‘08

ScoutH57 is right

Have him check the underside (not my pic)

Attached File


7/20/2026 9:21:34 PM EDT
[#10]
Quote History
Originally Posted By GalloRosso:
I think they came out in ‘07 or ‘08

ScoutH57 is right

Have him check the underside (not my pic)

https://www.ar15.com/media/mediaFiles/612674/Trijicon-TA33GH_jpg-3798596.JPG

View Quote

January '07 release date.
7/23/2026 7:46:15 AM EDT
[#11]
Both TA33s I had, had serial numbers. The first one I bought way back in 2010 or so.

Never seen a fake one but you never know anymore.
7/30/2026 5:25:19 PM EDT
[#12]
That's definitely real, the serial number is probably just lightly stamped on the bottom or something. Or maybe it slipped through their quality control and missed the serial number. Either way, Trijicon will refurbish it.

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