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4/8/2026 4:43:28 PM EDT
[Last Edit: MHeemeyer][Edited]
So I gots me a head injury on active-duty and since then, I get overwhelmed with math, mils and moa.  I need a KISS scope for an AR10.  I really like the ACOG and Primary Arms scopes for their six-foot rule for distance.  Trouble is, the ACOG is fixed and the Primary Arms PLX scopes are a LPVO, nothing for distance.  So what do you recommend for a scope under $1500?
Sometimes reasonable men must do unreasonable things.
4/8/2026 4:53:11 PM EDT
[#1]
Originally Posted By MHeemeyer:
So I gots me a head injury on active-duty and since then, I get overwhelmed with math, mils and moa.  I need a KISS scope for an AR10.  I really like the ACOG and Primary Arms scopes for their six-foot rule for distance.  Trouble is, the ACOG is fixed and the Primary Arms PLX scopes are a LPVO, nothing for distance.  So what do you recommend for a scope under $1500?
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Have you seen our MicroPrism line?
Primary Arms Social Team
www.primaryarms.com
Contact me at: [email protected]
4/8/2026 5:04:25 PM EDT
[#2]
Quote History
Originally Posted By PrimaryArms:
Have you seen our MicroPrism line?
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Yes.  But they do not zoom in for distance.  BTW love you guys and your optics.
Sometimes reasonable men must do unreasonable things.
4/8/2026 5:23:42 PM EDT
[Last Edit: Urimaginaryfrnd][Edited] [#3]
Vortex Viper 2.5-10x44

The BDC reticle is only true at max power ….  10x
Lower power settings on a second focal plane can be figured out because just like field of view (side to side) changes showing more the space between BDC marks changes its value unlike FFP tactical optics.  But if you take a large target then zero at 100 or 200 you can go back to 300,400,500,600 etc and shoot at those distances still aiming at the center with no attempt to correct. Then take a can of spray paint and mark those groups below center. Return to your known distances like 300 yds and make notes how the BDC reticle compares at 10x at 2.5x and at 6x (others if you want) to where the bullet strike is in relation to the reticle marks.

What you find with a 2FP BDC scope is people dial down to a lower power like 6x which in low light makes the image look brighter. But since the BDC marks represent more area between each mark at 6 than at 10 they shoot over their target. Once you realize how it works, you can either only use the center x which is the same at any power then hold over or you can keep it on 10x and use the BDC reticle to estimate hold over. Or you put in the work to find out what those marks represent at 6x etc.

OR

SWFA SS 3-9 x42 FFP

This is First Focal Plane with a mil based reticle but with a FFP scope the image appears to grow larger as you increase magnification and marks in the reticle always have the same value. With this you run a ballistic chart in MIL then either hold over using marks on the reticle or dial in correction.

Kenton Ind custom engraved scope knobs

Kenton Ind will custom engrave scope knobs that allow you to dial 6 for 600 yds or 5 for 500 yds it takes all the guess work out.
4/8/2026 5:26:50 PM EDT
[#4]
Quote History
Originally Posted By MHeemeyer:


Yes.  But they do not zoom in for distance.  BTW love you guys and your optics.
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Thank you for the support! We do offer a couple magnifiers that pair well with red dots and our MicroPrisms, if you're looking for something with a little more reach.

We also second the Vortex 2.5-10^ great company and great optics.
Primary Arms Social Team
www.primaryarms.com
Contact me at: [email protected]
4/8/2026 5:27:06 PM EDT
[#5]
What cartridge, .308?
4/8/2026 5:49:42 PM EDT
[#6]
Quote History
Originally Posted By bluedog82:
What cartridge, .308?
View Quote

.308
Sometimes reasonable men must do unreasonable things.
4/8/2026 5:56:15 PM EDT
[#7]
Quote History
Originally Posted By MHeemeyer:

.308
View Quote


How about this? They have good FFP scopes with BDC reticles.
4/8/2026 6:00:43 PM EDT
[#8]
Quote History
Originally Posted By bluedog82:


How about this? They have good FFP scopes with BDC reticles.
View Quote


Great recommendation! We will also be restocking our SLx Compact 4-16 FFP next month

Check it out here

Primary Arms Social Team
www.primaryarms.com
Contact me at: [email protected]
4/8/2026 6:17:05 PM EDT
[#9]
PA, why do you guys not offer a GLx or PLx line of out to at least 10x or 20x with a 30mm or 34mm tube?  SFP would be nice as well.
Sometimes reasonable men must do unreasonable things.
4/8/2026 7:10:14 PM EDT
[#10]
Quote History
Originally Posted By MHeemeyer:
PA, why do you guys not offer a GLx or PLx line of out to at least 10x or 20x with a 30mm or 34mm tube?  SFP would be nice as well.
View Quote


They have in the past. There’s a 2.5-20 and a 1.5-12 coming soon in the PLx line. But they’re FFP, as SFP doesn’t really make sense for the majority of shooters in that magnification range.
4/9/2026 8:47:11 AM EDT
[#11]
Quote History
Originally Posted By bluedog82:
They have in the past. There’s a 2.5-20 and a 1.5-12 coming soon in the PLx line. But they’re FFP, as SFP doesn’t really make sense for the majority of shooters in that magnification range.
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Got the inside scoop huh?  Either of those would be perfect!  Wonder if they need any beta testers or YouTube reviews?  Wink wink, nudge nudge.
Sometimes reasonable men must do unreasonable things.
4/9/2026 10:37:52 PM EDT
[#12]
Quote History
Originally Posted By MHeemeyer:
I need a KISS scope for an AR10.


 SFP would be nice as well.

View Quote


Dude, keep it simple, go with First Focal Plane and no "conversions" necessary if you are not at max zoom. SFP needs conversions----math is involved.
4/12/2026 10:20:38 PM EDT
[#13]
I’d suggest you Look at: https://www.kentonindustries.com/

They make custom BDC cams. Check which scopes they make them for and pick one you like, then get a BDC cam for it!

For example, I got one for my Trijicon Creedo HX 2.5-10x56 for my 300 blk subs (because they have a LOT of drop). It’s in 10 yard increments from 50-300 yards, so all I have to do is turn the knob to whatever range I want and it’s dead on. It also has MOA at the bottom so  I can do the math and dial if I’m using supers.

I’m considering getting some BDC dials for my Leupold mark 4’s instead of replacing them with Mark 5’s… that would save me a lot of $$$.

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