Q&A for Primary Arms SLX 4-14x44 FFP Field Eval

[Formidilosus]

Q&A for- https://rokslide.com/forums/threads/primary-arms-slx-4-14x44-ffp.385171/

 

[Schmo]

As has been said before, this seems to be “missing rifle scope feature”. Great dumpster fire.

 

[ScreamingPotato]

Ouch

 

[Dobermann]

Another one bites the dust.

Would be interesting to see how their top-level (made in Japan) offerings fare ...

 

[Halligan]

Another one bites the dust.

Would be interesting to see how their top-level (made in Japan) offerings fare ...

I think that is the real question, especially given the nature of the reticle (looks great).

 

[grappling_hook]

@Formidilosus What is your experience with the Primary Arms Microprism scopes? I have the SLx 5x Microprism scope. Zero will not stay put... elevation/windage adjustments are unpredictable... I'm returning it, but now thinking this may not be uncommon for these and that I might not want to replace it with another one. Which is a bummer because the weight and features were in the sweet spot for my ultralight ultralight rifle build (sub 4-lbs ar).

Assuming this isn't uncommon for them, is there an equivalent 3x or 5x microprism under 10oz from another manufacturer that doesn't regularly have reliability issues? Or is the only way to get a solid fixed ultralight 3x/5x to go with a 1x red dot with a magnifier (e.g. Aimpoint micro with a magnifer)? That would put it back up in weight to my NF NX8 1-8-- which is an awesome scope, just not super ligthweight.

 

[Formidilosus]

@Formidilosus What is your experience with the Primary Arms Microprism scopes? I have the SLx 5x Microprism scope. Zero will not stay put... elevation/windage adjustments are unpredictable... I'm returning it, but now thinking this may not be uncommon for these and that I might not want to replace it with another one. Which is a bummer because the weight and features were in the sweet spot for my ultralight ultralight rifle build (sub 4-lbs ar).

Assuming this isn't uncommon for them, is there an equivalent 3x or 5x microprism under 10oz from another manufacturer that doesn't regularly have reliability issues? Or is the only way to get a solid fixed ultralight 3x/5x to go with a 1x red dot with a magnifier (e.g. Aimpoint micro with a magnifer)? That would put it back up in weight to my NF NX8 1-8-- which is an awesome scope, just not super ligthweight.

I don’t have enough experience with the PA prisms to say- don’t have much experience with prisms at all.

 

[NSI]

I've had good luck with the PA prisms, but not with their included mounts (especially the cantilevering piece). Using a known-good third party mount for the "micro" pattern should solve your problem. I use Unity on my rifles but Scalarworks, Reptilia, Badger, etc should work just as well.

You can also pony up for an ACOG - there are a variety of sizes, reticles, and mags available. They are the bedrock upon which Trijicon's reputation for reliability was built, and can be trusted to hold zero under absurd circumstances.

-J

 

[KyleR1985]

I've had good luck with the PA prisms, but not with their included mounts (especially the cantilevering piece). Using a known-good third party mount for the "micro" pattern should solve your problem. I use Unity on my rifles but Scalarworks, Reptilia, Badger, etc should work just as well.

You can also pony up for an ACOG - there are a variety of sizes, reticles, and mags available. They are the bedrock upon which Trijicon's reputation for reliability was built, and can be trusted to hold zero under absurd circumstances.

-J

What specific issues have you guys seen with the cantilever mount?

How does the ones you reference solve it?

I love the optic, I haven’t had a zero loss issue(yet), but I’m willing to be proactive here and get a new mount.

Thanks!

 

[NSI]

What specific issues have you guys seen with the cantilever mount?

How does the ones you reference solve it?

I love the optic, I haven’t had a zero loss issue(yet), but I’m willing to be proactive here and get a new mount.

Thanks!

Not sure what else to say, except that multiple users including me have had zero shift with the included mounts that is remediated somewhat by excluding the cantilever section and eliminated entirely by switching to a Unity mount. I drop test all my rifles. For the lower value prisms I use a magnifier to establish zero.

The idea of a mount one builds up progressively with different components screwed together is a lovely concept, but there are simply too many mating surfaces for it to be robust in practice. Adding the lever arm from the cantilever exacerbates this issue of multiple shifting bolted joints.

-J

 

[KyleR1985]

Not sure what else to say, except that multiple users including me have had zero shift with the included mounts that is remediated somewhat by excluding the cantilever section and eliminated entirely by switching to a Unity mount. I drop test all my rifles. For the lower value prisms I use a magnifier to establish zero.

The idea of a mount one builds up progressively with different components screwed together is a lovely concept, but there are simply too many mating surfaces for it to be robust in practice. Adding the lever arm from the cantilever exacerbates this issue of multiple shifting bolted joints.

-J

Thanks. Very clear.