Difference between these two ACOG's

[HawkMan]

What's the difference between these two ACOG's?
Is one just meant for .223 and the other for 5.56?
I'm having a difficult time finding anything online specifying the differences.

TA31-D-100288: Trijicon ACOG 4x32 Scope, Dual-Illuminated Red Chevron M193 Reticle w/ TA51 Mount

TA31F: Trijicon 4x32 ACOG, Dual Illuminated Red Chevron .223 Ballistic Reticle w/ TA51 Flattop Mount

[tuolumnejim]

What I see right off the bat are these same differences.

[Kmai24]

Looks like one’s reticle is dedicated for m193 5.56 55gr ball ammo (ta31d) vs the ta31f which is both 223/556. So in others words, my interpretation would be one is for military and the other is for civilians.

[alpha_romeo_XV]

For a balistic reticle to be completely accurate it is limited to one specific bullet weight leaving muzzle at one specific velocity.
When those two factors are right the reticle delivers the right Elevation dope amazingly well. You're on your own for Windage.

[OlderThanDirt]

[AreWeFree]

ACOG BDC FAQ https://www.ar15.com/forums/ar-15/-/18-229420/?

Main page: https://www.ar15.com/forums/AR-15/AR...FAQ/18-493308/

[toiletfighter]

ACOG BDC FAQ https://www.ar15.com/forums/ar-15/-/18-229420/?

Main page: https://www.ar15.com/forums/AR-15/AR...FAQ/18-493308/

Thanks man, good info.

[HawkMan]

I'm not sure if you replied to the wrong thread or if you're being serious. I'm not comparing all ACOG's in existence, I'm asking if anyone knows the difference between two specific ACOG's. From what I can tell one is designed for M193 5.56, 55gr FMJ ammo fired from a 16" barrel and the other states it's calibrated for 5.56/.223

ACOG BDC FAQ https://www.ar15.com/forums/ar-15/-/18-229420/?

Main page: https://www.ar15.com/forums/AR-15/AR...FAQ/18-493308/

I appreciate the reply but this has nothing to do with the question.

[Jeepergeo]

What's the difference between these two ACOG's?
Is one just meant for .223 and the other for 5.56?
I'm having a difficult time finding anything online specifying the differences.

TA31-D-100288: Trijicon ACOG 4x32 Scope, Dual-Illuminated Red Chevron M193 Reticle w/ TA51 Mount

TA31F: Trijicon 4x32 ACOG, Dual Illuminated Red Chevron .223 Ballistic Reticle w/ TA51 Flattop Mount

Follow your own links, compare the specs, note again the calibration differences.

[code_blue]

There is a newer ACOG with PrimaryArms's ACCS reticle. Seems to be pretty solid and another option for you.

http://www.primaryarms.com/trijicon-acog-4x32-scope-with-red-dual-illumination-acss-reticle-ta31-r-acss

[HawkMan]

Follow your own links, compare the specs, note again the calibration differences.

Did you even read what you quoted?

[wild_weasel]

Hello,

The TA31F is the original version of the ACOG as used by the USMC with M844 62gr ball ammo in either the M16-A4 (20") or M4 Carbine. (14.5") While the TA31D is calibrated for Civilianized (16") AR's firing XM193 55gr ball.

Cheers,
W-W

[LeadFarmer74]

What's the difference between these two ACOG's?
Is one just meant for .223 and the other for 5.56?
I'm having a difficult time finding anything online specifying the differences.

TA31-D-100288: Trijicon ACOG 4x32 Scope, Dual-Illuminated Red Chevron M193 Reticle w/ TA51 Mount

TA31F: Trijicon 4x32 ACOG, Dual Illuminated Red Chevron .223 Ballistic Reticle w/ TA51 Flattop Mount

It looks like the main difference is one is set up to shoot m193 and the other is for any 223/556 round. Other than that I can take tell any difference.

[OlderThanDirt]

I'm not sure if you replied to the wrong thread or if you're being serious. I'm not comparing all ACOG's in existence, I'm asking if anyone knows the difference between two specific ACOG's. From what I can tell one is designed for M193 5.56, 55gr FMJ ammo fired from a 16" barrel and the other states it's calibrated for 5.56/.223



I appreciate the reply but this has nothing to do with the question.

Correct thread, but you obviously did not read the suggestion about reading the detailed descriptions that explain the specific design and calibration properties for all ACOG scopes available for sale. All of your questions, and then some, would have been answered by simply taking a few minutes to read about the two specific scopes.

[HawkMan]

Hello,

The TA31F is the original version of the ACOG as used by the USMC with M844 62gr ball ammo in either the M16-A4 (20") or M4 Carbine. (14.5") While the TA31D is calibrated for Civilianized (16") AR's firing XM193 55gr ball.

Cheers,
W-W

Fantastic answer!I knew the TA31-D was for 16" barrels but didn't know the TA31F is for 14.5" or 20" barrels. Thank you!