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You are here:Home > Trijicon ACOG Comparison and FAQ


How to choose a Trijicon ACOG for your specific application


1. Choose an ACOG to match the Caliber of your Rifle (based on ACOG specs vs rifle caliber)

5.56mm (.223 Cal) Rifles
TA31 series ACOGs (60% of customers choose) <-----We Recommend
TA01 series ACOGs (20% of customers choose)
<-----We Recommend
TA11 series ACOGs (10% of customers choose)
TA33 series ACOGs (5% of customers choose)
TA648 series ACOGs (5% of customers choose)

7.62mm (.308 cal) Rifles
TA11 series ACOGs (75% of customers choose)
<-----We Recommend
TA648 series ACOGs (10% of customers choose) <-----We Recommend
TA01 series ACOGs (10% of customers choose)
TA33 series ACOGs (5% of customers choose)

6.8mm Rifles
TA31 series ACOGs (100% of customers choose) <-----We Recommend

.50 cal Rifles
TA648 series ACOGs (100% of customers choose) <-----We Recommend

2. Choose your Reticle Pattern (based solely on personal preference)

Chevron (45% of customers choose) <-----We Recommend
Crosshair (25% of customers choose) <-----We Recommend
Horseshoe Dot (25% of customers choose) <-----We Recommend
Triangle (3% of customers choose)
Doughnut (2% of customers choose)

3. Choose your Reticle Pattern Color (red for normal use or amber for night vision compatibility)

Red (60% of customers choose) <-----We Recommend
Amber (20% of customers choose) <-----We recommend TA01NSN, TA01NSN-RMR, or TA01ECOS for Night Vision Use
Green (20% of customers choose)



Trijicon ACOG Scope FAQ


We have a VERY thorough knowledge of the entire Trijicon product line (if we don’t know the answer, it probably can’t be found). If you have any questions about what product is best for your situation don’t hesitate to give us a call. We’ll make sure you get the perfect ACOG for your needs!

Question: What is that "Man Shaped" part around the reticle pattern?

Answer: That silhouette around the reticle pattern is just for illustrative purposes only. That "Man Shaped" image not part of the reticle pattern. Example: On the TA31F it shows the "Man Shaped" symbol around the Chevron and Bullet Drop Reticle Pattern on the website picture. When you look through the TA31F scope, you will ONLY see the Chevron and Bullet Drop Reticle Pattern. You will not see any "Man Shaped" image.

Example: Illustration (on website) VS Actual View (through the scope)

Illustration

Actual View


Question: How do I use the Trijicon ACOG reticle pattern? What are the aiming points?

Answer: There are varying aiming points depending on what reticle pattern you choose. All of them are fairly easy to use. We'll show you an example of the aiming points for the Trijicon ACOG Chevron reticle pattern. If you have questions about a different reticle pattern don't hesitate to ask. The product manual that comes with the ACOG also shows the bullet drop points.

Example: ACOG Chevron Aiming Points Chart
Trijicon ACOG Chevron Bullet Drop Chart


Question: What ACOG should I choose?
Answer: That depends on your personal preferences and what you're going to use it for. All of these Trijicon ACOG scopes feature high durability, precise accuracy, ranging reticles (for ranging shots out to 600+ meters), etc. All ACOG scopes automatically illuminate during low light conditions (except the TA02 which is battery powered). Most of the ACOGs come with Picatinny Rail mounts factory installed (with the exception being any model that says M16 Carrying Handle Mount). All of the Trijicon ACOGs are made with the same high quality materials. There is no quality difference between the TA01 and the TA31ECOS…the additional cost is due to the extra options the TA31ECOS has. It doesn’t matter if you’re buying the TA01 or the TA31ECOS, you’re still getting a world class scope.

Question: What ACOG scopes are MILSPEC / Military Models?

Answer: It's a common misconception that only "certain ACOG scopes" are MILSPEC / Military Models. There is no design or toughness difference between a TA01 (a normal ACOG) and TA31RCO-M150 (a US Army specific ACOG). These scopes are all made with the same parts, same engineering, same design, and same toughness standards. Trijicon makes all of the ACOG scopes MILSPEC tough because they want to sell ALL of the ACOG scopes to the military. The models that the US Military purchases a lot of are: TA01NSN (US Army), TA31F (US Army), TA31RCO-M4CP (US Marine Corps), TA31RCO-A4CP (US Marine Corps), TA31RCO-M150CP (US Army).

Question: If I put this ACOG on a M4 carbine or M16 rifle will I see the front sight post?

Answer: The magnification of the ACOG scopes actually "zooms out" past the front sight. The sight will be visible as a light blur in the bottom of the scope. It will not affect the operation of the optic or the rifle in any way.

Question: I have a X caliber rifle, with a X length barrel, with a X twist, using X grain bullets....which ACOG should I choose?
Answer: Individual differences in the types of rifles, lengths of barrels, barrel twists, and bullet grains are generally not important when selecting an ACOG. If your rifle is 5.56mm, select a 5.56mm ACOG. If your rifle is a 7.62mm rifle, select a 7.62mm ACOG. If you are using some very exotic non-standard custom weapon or out of normal spec custom ammo, there many not be an ACOG that will match your bullet drop exactly.

* If you have a very short or very long barrel 5.56mm rifle, there are several ACOG models made specifically for those applications.

Question: How easy is this optic to use?
Answer: All of the Trijicon ACOG scopes are extremely easy to use. You simply take it out of the package (2 seconds), put it on the rifle (5 seconds), and zero it in (time depends on individual shooting skill). Once that's done you're all set.....no further adjustments are necessary. Trijicon ACOGs are fixed magnifications with no further windage or elevation adjustments necessary. There are no on / off switches, batteries, or anything else to worry about. Once you put the optic on your weapon and zero it, the optic is ready for use. It's one of the easiest to use optics on the market today.

Question: Why do ACOGs cost so much?

Answer: Basically it boils down to you get what you pay for. The best scopes cost more money. Trijicon uses top of the line materials, manufacturing, and engineering methods to produce the best combat optic on the market. This is why the BOTH the USMC and the US ARMY have ordered more than one hundred thousand ACOG scopes to date (and they’re adding on to that order as you’re reading this). Military and Law Enforcement units all over the world use ACOGs (Israeli Defense Forces, British SAS, United States Special Forces Units, US Secret Service, California LAPD SWAT, etc).

Question: What makes an ACOG different than the knockoff I can buy for HALF the price?


ACOGs:
Trijicon ACOGs are made with the highest quality materials, outstanding workmanship, and precise engineering. Trijicon ACOGs are made from Pressure Forged 7075-T6 Aircraft Aluminum and coated with a Mil Spec anodized finish (this makes the scopes both lightweight and extremely durable). The Trijicon employees take great pride in their scopes and triple check their work to ensure that every ACOG meets Trijicon’s high quality standard. Trijicon ACOGs are engineered to meet tolerances down to the thousandth of an inch…that’s 1/1000 of 1 inch. They want to make sure that the Trijicon name stands for high quality, high durability, and precise accuracy. Military and Law Enforcement units buy real ACOGs for one reason…they're the best combat optics on the market!

KNOCKOFFs:
We’ve seen and used the knockoff scopes from China and other third world manufacturers. These scopes are cheap for a reason…lower quality materials, cheap workmanship, and basic “slap it together” engineering. What you get when you combine poor quality materials, cheap workmanship, and "slap it together" enginnering is an expensive paperweight that LOOKS like an ACOG but does not PERFORM like an ACOG. Knockoff optics are NOT safe to use on real weapons!

Question: I want the absolute rock bottom lowest possible price for an ACOG, and I found it somewhere else for less.
Answer: When you’re looking for the lowest price make sure the businesses you are checking are Accredited Better Business Bureau Members with a good rating! There are some dishonest businesses out there that show dirt cheap prices for optics and gear that aren’t real. They ship used, repaired, remanufactured, factory rejects, or even knockoff fake products (usually made cheaply in China). You can use the Better Business Bureau to checkout any company before you buy online.

If you buy from MilitaryWarfighter, we only sell authentic brand new unused items direct from the manufacturer.
We have a 30 day return policy if you are unhappy with ANY purchase!
We have 0 Better Business Bureau Complaints and TONS of good customer ResellerRating reviews!


Here are some of the fake optics that you might find at a "rock bottom lowest price" dealer:


This dealer is selling fakes but marketing them as the "real deal" (we can't mention the name of the website for legal reasons). These knockoff sights were significantly cheaper than real dealer prices. They were all made cheaply in China and shipped here illegally to the US. These knockoff sights WILL NOT stand up to normal use on actual rifles. Knockoff sights are NOT SAFE to use on real weapons!


TRIJICON WILL NOT HELP IF YOU BUY A FAKE ACOG. IT'S NOT THEIR FAULT THAT YOU BOUGHT A FAKE. BUYER BEWARE!





Trijicon ACOG Scopes for 5.56mm (.223 cal) Rifles



Trijicon
Part #
Power
Caliber
Day Reticle Color
Night Reticle Color
Scope Length
Scope Weight
BAC
Eye Relief
FOV at 100yd
RMR Included
Mount Included
TA31
4 x
.223 cal (5.56mm)
5.8 in
9.9 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA31A
4 x
.223 cal (5.56mm)
5.8 in
9.9 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA31F
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31F-G
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31-G
4 x
.223 cal (5.56mm)
5.8 in
9.9 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA31H
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31H-G
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31RCO-M4CP
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31RCO-A4CP
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31RCO-M150CP
4 x
.223 cal (5.56mm)
7.3 in
15.9 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA31RMR
4 x
.223 cal (5.56mm)
5.8 in
16.5 oz
Yes
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA31RMR-G
4 x
.223 cal (5.56mm)
5.8 in
16.5 oz
Yes
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA31RMR-A
4 x
.223 cal (5.56mm)
5.8 in
16.5 oz
Yes
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA31F-RMR
4 x
.223 cal (5.56mm)
5.8 in
16.5 oz
Yes
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA31ECOS
4 x
.223 cal (5.56mm)
6.2 in
16.5 oz
Yes
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA31ECOS-G
4 x
.223 cal (5.56mm)
6.2 in
16.5 oz
Yes
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA01
4 x
.223 cal (5.56mm)
5.8 in
9.9 oz
No
1.5 in
36.8 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA01NSN
NVG Compatible
4 x
.223 cal (5.56mm)
5.8 in
14.7 oz
No
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA01NSN-RMR
NVG Compatible
4 x
.223 cal (5.56mm)
5.8 in
16.5 oz
No
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA01ECOS
NVG Compatible
4 x
.223 cal (5.56mm)
6.2 in
16.5 oz
No
1.5 in
36.8 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA02
NVG Compatible
4 x
.223 cal (5.56mm)
6.0 in
18.1 oz
Yes
1.5 in
36.8 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA33-8
3 x
.223 cal (5.56mm)
6.10 in
12.6 oz
Yes
1.9 in
19.3 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA33R-8
3 x
.223 cal (5.56mm)
6.10 in
12.6 oz
Yes
1.9 in
19.3 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA33G-H
3 x
.223 cal (5.56mm)
6.10 in
12.6 oz
Yes
1.9 in
19.3 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA33H-RMR
3 x
.223 cal (5.56mm)
6.10 in
14.4 oz
Yes
1.9 in
19.3 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA11
3.5 x
.223 cal (5.56mm)
8.0 in
14.0 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA11D
3.5 x
.223 cal (5.56mm)
8.0 in
14.0 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA11F
3.5 x
.223 cal (5.56mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA11-G
3.5 x
.223 cal (5.56mm)
8.0 in
14.0 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA11H
3.5 x
.223 cal (5.56mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA11H-G
3.5 x
.223 cal (5.56mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA11J-G
3.5 x
.223 cal (5.56mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA11J-RMR
3.5 x
.223 cal (5.56mm)
8.0 in
20.3 oz
Yes
2.4 in
28.9 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA648
6 x
.223 cal (5.56mm)
9.0 in
36.8 oz
Yes
2.7 in
17.0 ft
NO RMR
Option
Picatinny
Rail Mount
Included
TA648RMR
6 x
.223 cal (5.56mm)
9.0 in
39.3 oz
Yes
2.7 in
17.0 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA55
5.5 x
.223 cal (5.56mm)
12.0 in
30.1 oz
Yes
2.7 in
18.4 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included





Trijicon ACOG Scopes for 7.62mm (.308 cal) Rifles:



Trijicon
Part #
Power
Caliber
Day Reticle Color
Night Reticle Color
Scope Length
Scope Weight
BAC
Eye Relief
FOV at 100yd
RMR Included
Mount Included
TA11C
3.5 x
.308 cal (7.62mm)
8.0 in
14.00 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA11E
3.5 x
.308 cal (7.62mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA11H-308
3.5 x
.308 cal (7.62mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA11J308-G
3.5 x
.308 cal (7.62mm)
8.0 in
18.5 oz
Yes
2.4 in
28.9 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA33-9
3 x
.308 cal (7.62mm)
6.10 in
12.6 oz
Yes
1.9 in
19.3 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA33R-9
3 x
.308 cal (5.56mm)
6.10 in
12.6 oz
Yes
1.9 in
19.3 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included
TA648-308
6 x
.308 cal (7.62mm)
9.0 in
36.8 oz
Yes
2.7 in
17.0 ft
NO RMR
Option
Picatinny
Rail Mount
Included
TA648-308G
6 x
.308 cal (7.62mm)
9.0 in
36.8 oz
Yes
2.7 in
17.0 ft
NO RMR
Option
Picatinny
Rail Mount
Included
TA648RMR-308
6 x
.308 cal (7.62mm)
9.0 in
37.90 oz
Yes
2.7 in
17.0 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included
TA01B
4 x
.308 cal (7.62mm)
5.8 in
9.9 oz
No
1.5 in
36 ft
Option
To
Add RMR
M16 Handle
Mount Included
TA55A
5.5 x
.308 cal (7.62mm)
12.0 in
30.1 oz
Yes
2.7 in
18.4 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included




Trijicon ACOG Scopes for 6.8mm Rifles:


Trijicon
Part #
Power
Caliber
Day Reticle Color
Night Reticle Color
Scope Length
Scope Weight
BAC
Eye Relief
FOV at 100yd
RMR Included
Mount Included
TA31H68
4 x
6.8mm
5.8 in
14.7 oz
Yes
1.5 in
36.0 ft
Option
To
Add RMR
Picatinny
Rail Mount
Included




Trijicon ACOG Scopes for .50 cal Rifles:


Trijicon
Part #
Power
Caliber
Day Reticle Color
Night Reticle Color
Scope Length
Scope Weight
BAC
Eye Relief
FOV at 100yd
TRD DOC RMR
Mount Included
TA648-50
6 x
.50 cal
9.0 in
36.8 oz
Yes
2.7 in
17.0 ft
NO RMR
Option
Picatinny
Rail Mount
Included
TA648RMR-50
6 x
.50 cal
9.0 in
37.90 oz
Yes
2.7 in
17.0 ft
RMR
Optic
Included
Picatinny
Rail Mount
Included




Glossary of Terms:


Trijicon Part # = The part number Trijicon gives this ACOG scope. If the ACOG is Night Vision Goggle compatible it will be noted as " NVG Compatible" in this block below the part number.

Power = The Magnification Power of the scope.

Caliber = The Round Caliber / Rifle Type that the scope is calibrated for. Example: M16 Rifle = .223 cal (5.56mm), M4 Carbine = .223 cal (5.56mm), M21 Sniper Rifle = .308 cal (7.62mm)

Day Reticle Color = What the reticle pattern looks like during Daylight Hours.

Night Reticle Color = What the reticle pattern looks like during Nighttime Hours.

Scope Length = The length of the scope.

Scope Weight = The Total Weight of the scope which includes the Mount and RMR sight (if included).

BAC = Bindon Aiming Concept. The BAC equipped ACOG scopes allow you to shoot with both eyes open. In order to be considered BAC equipped the reticle pattern must illuminate during the day and night (The TA01 has black crosshairs during the day and is not BAC equipped, while the TA31RMR has red crosshairs during the day and is BAC equipped).

Eye Relief = The optimal distance behind the scope your eye should be while shooting. All of the ACOG scopes listed have good eye relief when compared to the caliber that they’re calibrated for.

FOV at 100 yd = Field of View at 100 Yards. The FOV is the “width” of the view at a specific range. The larger the FOV is, the wider the view is when looking through the scope (which is better for scanning for targets).

RMR Included = This shows if the ACOG comes equipped with a Trijicon Ruggedized Miniature Reflex (RMR) sight from the factory. Trijicon Ruggedized Miniature Reflex sights are good for CQB and Home Defense (short distance targets). The 4x32, 3.5x35, 3x30, and 5.5x50 ACOG scopes with the notation “ Option To Add RMR” can add them as an accessory from the “Options and Discounted Accessories” checkbox list before you click “Add to My Cart”. If you want to wait you can always pick up a Trijicon RMR Discount Package after you get your ACOG.

Mount Included = The mount that Trijicon includes from the factory. The TA51, TA60, TA75, and ARMS are all Picatinny Rail Mounts which will attach the scope to any standard Picatinny Rail. If you see an ACOG listed with a TA51, TA60, TA75, or ARMS mount…it is factory installed and ready to mount on your weapon. The M16 Carry Handle Mount is the TA30 Screw Set which attaches the ACOG to the Carrying Handle of M16 or M4 Rifles. Any ACOG scope with a TA51, TA60, or ARMS mount can be changed to M16 Carry Handle mounting by purchasing a TA30 Screw Set (the TA75 mount doesn’t have this option).



Trijicon ACOG Comparison and FAQ
 

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