Trijicon TR24 mount questions

[Redbeardsong]

Co-witnessing is possible when in the 1X magnification?
I run a lower 1/3 with my Aimpoints.
The FSB doesn't bother me.

Besides, I will be mounting this optic on a RECCE upper.

NO, I don't believe co-witnessing is practically usable (if even possible) because the front sight is magnified through the optic. It's not like looking through an aimpoint.

If this is on a RECCE, I would use a lower mount and offset 45deg BUIS.

[polymorpheous]

Yeah.
I didn't think so.
The magnification is closer to 1.25X

The 45* BUIS's are not going to be used on this upper. (I don't 3-gun or anything.)
As long as the ADM 30mm Recon can clear a Troy, I should be OK.

[BrigandTwoFour]

Depending on your BUIS, I don't think you'd have a problem with the Recon mount. You couldn't deploy the sight, but it would still be there for when you take the optic off. The only BUIS that I've seen not work with the standard height recon is the first generation MBUS. The Troys, KACs, Gen 2 MBUS, and the other common folding ones I've seen around here will all fit right under the optic.

The Recon-H does make you have more of a chin weld. It's great for 3 gun running around and being quick, as it feels like a lower 1/3 cowitness. But if you plan on getting proper cheek welds and shooting prone, the H model is too high IMO.

If you were planning on using offset BUIS, then I would skip past the TR24 and go with something other than a 1-4x. The offsets seem more at home on rifles with 3x-9x, 2.5-10x, or fixed mag scopes. Otherwise you are adding complexity for no real gain. The TR24 is very fast on 1x, just as good as most any other RDS I've used as long as it's from conventional shooting positions.

The TR24 1x is actually 1X, not 1.25. But its 1X from the objective end of the scope, which is almost a foot closer than your eye. That's why it doesn't cowitness with irons very well. From a practical standpoint, its more like 1.1X. If you look at things further away than a few yards, then it becomes nearly true 1X

[polymorpheous]

Sounds like the ADM Recon is the mount for me then.
Thanks guys!

[nickdrak]

I actually like the concept of having the off-set iron sights as a back-up to the variable 1-?x scope on a patrol rifle or fighting carbine and plan to go to that set-up once a set of off-set irons come to market that don't cost outrageous $$$. Having to dismount the scope, regardless if which QD mount I am running, and flip up a set of back-up iron sights is not something I want to have to worry about in a fight.

[AKDoug]

I actually have experience with a TR-24 failure and mine is at Triji getting fixed right now. I had one of the internal lenses come loose and through the scope off by 9" at 100 yards when using 4x. This happened in the first hour of a two day class and was discovered during the zeroing phase of the class. The good news is that when using 1X it held zero for the rest of the class. We had a T-1 (or H-1) that failed to hold zero and it wasn't usable at all. Other than taking a bullet right to the scope, it would be tough to render a TR-24 useless at close range.

[polymorpheous]

I actually like the concept of having the off-set iron sights as a back-up to the variable 1-?x scope on a patrol rifle or fighting carbine and plan to go to that set-up once a set of off-set irons come to market that don't cost outrageous $$$. Having to dismount the scope, regardless if which QD mount I am running, and flip up a set of back-up iron sights is not something I want to have to worry about in a fight.

Understood completely.
In my case, the upper I'm putting together is just a range toy.
We go out to 600+ at my range.
I want to get in on that action

[BrigandTwoFour]

I actually like the concept of having the off-set iron sights as a back-up to the variable 1-?x scope on a patrol rifle or fighting carbine and plan to go to that set-up once a set of off-set irons come to market that don't cost outrageous $$$. Having to dismount the scope, regardless if which QD mount I am running, and flip up a set of back-up iron sights is not something I want to have to worry about in a fight.

I suppose in that context it makes sense. But I have a RDS equipped AR for those purposes. My TR24 equipped rifle is not for self defense/duty use. It tends to get used more for local competition and steel silhouette.

If needs dictate the offset irons, then have at it. I plan on going that route for my new project.

[BrigandTwoFour]

Understood completely.
In my case, the upper I'm putting together is just a range toy.
We go out to 600+ at my range.
I want to get in on that action

Having attempted to use my TR24G out to 500, I will say that you may better better off with a different scope for shooting at that range. The triangle on a post reticle works fine for me out to about 250 or so. Beyond that, there is no effective way to determine holdover. The turrets, for me, are not confidence inspiring for dialing either. If you plan on regularly shooting out to longer ranges, I would suggest checking out the SWFA offerings, which are in the same price class and offer a FFP mil dot system and exposed turrets.

[polymorpheous]

It would not be a regular thing.
Likely out to 300 on steel would be.