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[ARCHIVED THREAD] - Primary Arms SLX 3X Microprism (Page 22 of 24)
I'm a Trijicon fanboy and own way too many ACOGs so I've held off on buying one of these. I just took this Tavor in trade and wanted a cheap optic for it. Found a used painted SLX 3X for cheap and bought it on a whim. Holy cow this is a lot of optic for the price! I'll likely buy a few more.
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Ha! Great minds, and all....  (or at least inquisitive ones) |
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Quoted: Were you able to get this resolved with our Customer Service Reps? If not I'd be happy to help get you in contact with them! Quoted: Quoted: Anyone had an issue with the reticle not being vertical? I've emailed PA already, hoping they'll respond. Just curious if it's something someone else has noticed. NOT meaning to blast them, it took until I went to mount the optic to notice a few degrees of cant. And it's the only issue I've ever had with anything from them, so I suspect it's isolated. Were you able to get this resolved with our Customer Service Reps? If not I'd be happy to help get you in contact with them! Apologies! After coming back to the forum, this post prompted me to check. Apparently their email ended up in my SPAM filter. I'll be sending the reps the info they requested ASAP. |
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I've got the SLx 3x micro prism on a carry handle rifle and it's a nice optic but holy cow the eye relief is bad (apparently an ACOG eye relief is almost an inch less even? Bruh). I have the main carry handle riser thing attached (https://www.primaryarms.com/glx-2xp-carry-handle-adapter) which brings the optic back a bit and then one or even two of the little sloped riser things in addition to get it back further. So it's mostly useable now but I still have to have my face way forward and it's a chin weld because of all the stupid risers on there to get it back but they also raise it up high off the carry handle. Man I just wish someone would make like a fricking cantilever riser that brings the fricking thing back enough. Basically like the adapter I linked above but longer to bring the optic back. It needs to be way behind the back of the carry handle to be ideal. |
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Quoted: I've got the SLx 3x micro prism on a carry handle rifle and it's a nice optic but holy cow the eye relief is bad (apparently an ACOG eye relief is almost an inch less even? Bruh). I have the main carry handle riser thing attached (https://www.primaryarms.com/glx-2xp-carry-handle-adapter) which brings the optic back a bit and then one or even two of the little sloped riser things in addition to get it back further. So it's mostly useable now but I still have to have my face way forward and it's a chin weld because of all the stupid risers on there to get it back but they also raise it up high off the carry handle. Man I just wish someone would make like a fricking cantilever riser that brings the fricking thing back enough. Basically like the adapter I linked above but longer to bring the optic back. It needs to be way behind the back of the carry handle to be ideal. The TA31 4x32 is worse. The TA50 3x24 and TA33 3x30 have significantly better eye boxes than the PA 3X. The TA50 is my favorite premium optic and the PA 3X is my favorite budget optic. |
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Quoted: I've got the SLx 3x micro prism on a carry handle rifle and it's a nice optic but holy cow the eye relief is bad (apparently an ACOG eye relief is almost an inch less even? Bruh). I have the main carry handle riser thing attached (https://www.primaryarms.com/glx-2xp-carry-handle-adapter) which brings the optic back a bit and then one or even two of the little sloped riser things in addition to get it back further. So it's mostly useable now but I still have to have my face way forward and it's a chin weld because of all the stupid risers on there to get it back but they also raise it up high off the carry handle. Man I just wish someone would make like a fricking cantilever riser that brings the fricking thing back enough. Basically like the adapter I linked above but longer to bring the optic back. It needs to be way behind the back of the carry handle to be ideal. You could drill another hole in the carry handle |
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Quoted: You could drill another hole in the carry handle Quoted: Quoted: I've got the SLx 3x micro prism on a carry handle rifle and it's a nice optic but holy cow the eye relief is bad (apparently an ACOG eye relief is almost an inch less even? Bruh). I have the main carry handle riser thing attached (https://www.primaryarms.com/glx-2xp-carry-handle-adapter) which brings the optic back a bit and then one or even two of the little sloped riser things in addition to get it back further. So it's mostly useable now but I still have to have my face way forward and it's a chin weld because of all the stupid risers on there to get it back but they also raise it up high off the carry handle. Man I just wish someone would make like a fricking cantilever riser that brings the fricking thing back enough. Basically like the adapter I linked above but longer to bring the optic back. It needs to be way behind the back of the carry handle to be ideal. You could drill another hole in the carry handle I did that. Turned a bushing to center the Primary Arms 10-32 mounting screw into the over sized factory hole then after mounting used the unused cantilever mount holes to match drill adjacent clearance holes for 10-32 machine screw into the carry handle. |
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Quoted: I did that. Turned a bushing to center the Primary Arms 10-32 mounting screw into the over sized factory hole then after mounting used the unused cantilever mount holes to match drill adjacent clearance holes for 10-32 machine screw into the carry handle. Clever. |
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Quoted: Clever. I posted on p21 back in early May that the mounting with one bolt in an oversized carry handle hole relying on friction / clamping force was bugging me. So I decided to do something about it. I could have turned a locating shoulder into an integral fastener knob / bolt but this was quicker and easier. The optic is now as solid as it would be clamped to a rail. |
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PA 3XMP eye relief versus the 3X TA50 ACOG. I don’t shoot NTCH. Pretty sure I said it before but the ACOG eye box is immensely better. That said it’s been a bit since I got out my PA’s and they really are awesome for the money. (Take note that the rear sight is not a good indexing point since they’re on different slots. Look at the ocular location in relation to the safety instead.) Attached File |
| Does anyone make a flip to side or flip to center magnifier mount that would be compatible with the 3x prism? The 3x magnifier looks similar but IIRC has a different mounting footprint. Return to zero is easily checked against the red dot and for a general purpose setup should be good enough |
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“Anyone had an issue with the reticle not being vertical? I've emailed PA already, hoping they'll respond. Just curious if it's something someone else has noticed. NOT meaning to blast them, it took until I went to mount the optic to notice a few degrees of cant. And it's the only issue I've ever had with anything from them, so I suspect it's isolated.” I has 1. Tried several mounts including another PA and ADM. It was canted. PA had me send it in and replaced it with new. I have 3 of these - 3x, 1x and 1x 9mm. Very happy. |
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Quoted: Does anyone make a flip to side or flip to center magnifier mount that would be compatible with the 3x prism? The 3x magnifier looks similar but IIRC has a different mounting footprint. Return to zero is easily checked against the red dot and for a general purpose setup should be good enough I have both but can't answer the footprint question at this time as I'd have to dismount, but can say that even if they are, a Unity FTC mount wouldn't work as it doesn't mount straight up and down. |
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Quoted: Does anyone make a flip to side or flip to center magnifier mount that would be compatible with the 3x prism? The 3x magnifier looks similar but IIRC has a different mounting footprint. Return to zero is easily checked against the red dot and for a general purpose setup should be good enough Good enough for what 
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What mount is that front dot? |
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I'm not him, but I did the same thing at the top of the previous page. 1. He is using an Arisaka mount, I used an Overbore. Any ~2.26" hollow mount will do. 2. Aside from having to get deep down on your stock to get your eye low, it works fine. The mount does not occlude the optic in any appreciable sense. |
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Quoted: A magnifier only magnifies. If you were to have a reticle in a magnifier you would have return to zero issues. Quoted: Quoted: Does flipping a magnifer have return to zero problems, given that the magnifier must also be zeroed? A magnifier only magnifies. If you were to have a reticle in a magnifier you would have return to zero issues. |
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Fwiw mine is still holding up good with no lose of zero doing normal stuff. Attached File |
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Decided to try the 5x on a 12.3" hanson build. Using adm's 1.64" and heromod mount. Only zeroing and function testing the upper mostly but I like it so far. Going to decide whether to swap it with a ta33/509t combo I have on a 16". Attached File |
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Quoted: Decided to try the 5x on a new 12.5" build. Only zeroing and function testing the upper mostly but I like it so far. Going to decide whether to swap it with a ta33/509t combo I have on a 16". https://www.ar15.com/media/mediaFiles/108746/IMG_3492_jpeg-3286686.JPG I've thought about building a recce with one of them. Or even replacing a 2-10 on my 18" build. |
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Quoted: I've thought about building a recce with one of them. Or even replacing a 2-10 on my 18" build. Quoted: Quoted: Decided to try the 5x on a new 12.5" build. Only zeroing and function testing the upper mostly but I like it so far. Going to decide whether to swap it with a ta33/509t combo I have on a 16". https://www.ar15.com/media/mediaFiles/108746/IMG_3492_jpeg-3286686.JPG I've thought about building a recce with one of them. Or even replacing a 2-10 on my 18" build. All valid. Secondary ideas could be trying it on a 12" grendel and shuffling around an eotech g45 combo and glx 2.5-10. Options are good. |
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Quoted: Decided to try the 5x on a new 12.5" build. Using adm's 1.64" and heromod mount. Only zeroing and function testing the upper mostly but I like it so far. Going to decide whether to swap it with a ta33/509t combo I have on a 16". https://www.ar15.com/media/mediaFiles/108746/IMG_3492_jpeg-3286686.JPG How's the real life FOV and eye box? |
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Quoted: How's the real life FOV and eye box? I can compare to my ta33, PA 3x magnifier, and g45 magnifier. I'll pay more attention to fov next session, but as far as eyebox it's not nearly as forgiving as ta33-a bit less than the 3x, and maybe ssslightly more forgiving than the g45. |
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Still liking it during some zero tuning, quick weight shot for my config: Attached File |
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Quoted: I can compare to my ta33, PA 3x magnifier, and g45 magnifier. I'll pay more attention to fov next session, but as far as eyebox it's not nearly as forgiving as ta33-a bit less than the 3x, and maybe ssslightly more forgiving than the g45. Quoted: Quoted: How's the real life FOV and eye box? I can compare to my ta33, PA 3x magnifier, and g45 magnifier. I'll pay more attention to fov next session, but as far as eyebox it's not nearly as forgiving as ta33-a bit less than the 3x, and maybe ssslightly more forgiving than the g45. Cool. Thanks |
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Quoted: Where are you guys buying your ADM cantilever mounts? Specifically the 1.64". ADM wants $24 shipping, really? https://gunmagwarehouse.com/american-defense-manufacturing-ad-b2-cantilever-1-64-qd-mount-for-mini-acog-sights.html $5 shipping for me. |
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I decided to put together a 12.5" with a Centurion barrel for suppressed use due to the 0.064" gas port size. I also wanted to try the tabbed and pinned gas block, which impressed me. Immediately after assembly yesterday I hit the indoor range by my house to check function and how much gas blows back. The micro prism has been zero'd on another AR, and it was nuts on at 25 yards on the new build. I love it up close, and with the ADM it seems to hold zero fine when taking it off and putting it back on. Attached File Gonna zero at 100 yards later today. |
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Quoted: I run the 3x on everything but my shtf AR. That has their 5x and a red dot piggy backed. Question for those also running the 3x...do you also run a offset red dot? I run 2 3x. An acog and a slx. I don't run a dot with either. It might make a difference on a shot clock. For my uses it'd be pointless. I shoot plenty well, both eyes open at close targets. I'm not shooting in competitions. So, my opinion will likely vary from others, but I pick up the target & reticle fast enough for my needs just running the 3x on its own. Your use may vary. |
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Run an offset just for a fast dot? No. The 3x is fast enough by itself for my purposes. Run an offset because I want an NV optic? Yes. That said, I like 12 o'clock dots, and there are no good 12OC mounting options for the 3x micro, so I typically am not bothering outside of my goofy experiments. The reticle DOES have NV settings and IS visible through nods, but light transmission isn't good, so you're doing a sort-of BAC style of use with it, which is fine as long as you understand the limitations of it. The bigger pain in the ass is that you have to have the optic mounted so close for regular use eye relief that you (or at least I) bang my nods into it, or have to extend the rifle out so far as to be super annoying for me to handle (I'm not a tall guy with long arms). If you don't mind 45* offset MRDS, then maybe all of this is moot for you. For a decent, affordable, fightng-rifle optic, I think it is a solid choice. Build quality seems decent, form-factor is good, reticle is just simple enough for what it sets-out to accomplish. It's impossible to make any single optic fit every possible scenario ideally, afterall. |
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Quoted: Fwiw mine is still holding up good with no lose of zero doing normal stuff. https://www.ar15.com/media/mediaFiles/433221/1000001261_jpg-3283851.JPG Mine just shit the bed today. Had less than 200 rounds of use. Was using it off a bench to chronograph some different loads. First 3 shots went to point of aim at 100 yards. Then, mysteriously, no hits anywhere on target or target backer. Fired a group with carry handle irons and impacts were zeroed. Looked through optic and the reticle was 40-50” right of where I held the zeroed irons. No amount of optic adjustment moved the windage. So after 3 shots the optic skipped 40-50 MOA of windage and died there. This optic was babied. It led a cased life. No drops, no mishandling, no thermal cycling or heavy vibration. No heavy recoiling cartridges. I know PA will replace it. Out of a dozen or so combined PA red dots & prisms over a decade this is the first one to suffer infant mortality like that. Backup irons really simplified diagnostics. |
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Quoted: Mine just shit the bed today. Had less than 200 rounds of use. Was using it off a bench to chronograph some different loads. First 3 shots went to point of aim at 100 yards. Then, mysteriously, no hits anywhere on target or target backer. Fired a group with carry handle irons and impacts were zeroed. Looked through optic and the reticle was 40-50” right of where I held the zeroed irons. No amount of optic adjustment moved the windage. So after 3 shots the optic skipped 40-50 MOA of windage and died there. This optic was babied. It led a cased life. No drops, no mishandling, no thermal cycling or heavy vibration. No heavy recoiling cartridges. I know PA will replace it. Out of a dozen or so combined PA red dots & prisms over a decade this is the first one to suffer infant mortality like that. Backup irons really simplified diagnostics. DM sent to have this warranty process started. Our Customer Service team will gladly take care of this |
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Looking sharp....what mount components did you use to achieve that much height? |
[ARCHIVED THREAD] - Primary Arms SLX 3X Microprism (Page 22 of 24)
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