Skylerbone
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Looking for the best options in mounting an RDS on the PMR30 including info on mounting plate RDS combo. Thank you.
Keltec PMR30, Let’s See Your Optic
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Armored farmer
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I'm interested in the answers also.
I think a pmr would be a good tractor gun.
I think a pmr would be a good tractor gun.
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Skylerbone
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Well I’m about to answer my own question when everything arrives as I just purchased a Vortex Venom 3 MOA dot to top it off with. Now to choose a mounting plate.
I had to go with a Sig Romeo Zero and a polymer optic mount for my PMR30 to get it to run reliably.
This is the mount I am using: https://lakelinellc.com/shop/ultra-...rmsc-style-mount-plate-for-the-keltec-pmr-30/
I tried an aluminum RMR footprint mount and a Swampfox Kingslayer. It was too heavy and caused the slide to short stroke and caused feeding issues.
The problem with the aluminum mount and any RMR compatible optic is the total weight. The mount weighs 1 ounce and most RMR compatible optics weigh between 1.1 and 1.4 ounces. That is a total of 2.1 and 2.4 ounces added to the slide. The total weight of the polymer RMSc mount and Sig Romeo Zero is 0.65 ounces.
With the aluminum mount and Swampfox Kingslayer, the Pistols would start malfunctioning about half way through the fifth magazine when the pistol started getting dirty. I have not had any issues with the polymer mount and Romeo Zero.
With any rimfire pistol that has a reciprocating slide, every tenth of an ounce matters when it comes to reliability and functioning.
Here it is with the Sig Romeo .
This is the mount I am using: https://lakelinellc.com/shop/ultra-...rmsc-style-mount-plate-for-the-keltec-pmr-30/
I tried an aluminum RMR footprint mount and a Swampfox Kingslayer. It was too heavy and caused the slide to short stroke and caused feeding issues.
The problem with the aluminum mount and any RMR compatible optic is the total weight. The mount weighs 1 ounce and most RMR compatible optics weigh between 1.1 and 1.4 ounces. That is a total of 2.1 and 2.4 ounces added to the slide. The total weight of the polymer RMSc mount and Sig Romeo Zero is 0.65 ounces.
With the aluminum mount and Swampfox Kingslayer, the Pistols would start malfunctioning about half way through the fifth magazine when the pistol started getting dirty. I have not had any issues with the polymer mount and Romeo Zero.
With any rimfire pistol that has a reciprocating slide, every tenth of an ounce matters when it comes to reliability and functioning.
Here it is with the Sig Romeo .
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Skylerbone
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I’ve got a Tandemkross 1913 mount coming, it’s spec’d as lighter than the OEM one (Zytel) so I hope it works. By the numbers I’m adding 1.3 oz. and I’ve read other postings successfully using heavier combos. I’m guessing I’ve got a week before PSA gets everything to me/FFL although they’ve shipped the Keltec already.
Fingers crossed I don’t need to MCarbo frame mount, sucker is $120!!!
Fingers crossed I don’t need to MCarbo frame mount, sucker is $120!!!
Don't be surprised if you start having issues once the pistol gets dirty with adding 1.3 ounces to the slide. You also need to remember that any adapter to mount the reflex sight to a picattiny rail will also add weight. You didn't say what optic you plan on using. Most micro reflex sights are meant to be direct mounted to a pistol slide and will need an adapter to mount on a picattiny rail.
Here is the weight of the Swampfox Kingslayer and their picattiny rail adapter. The optic is 1.4 ounces and the adapter is 0.8 ounces.
And with the Tandemkross mount, you will need a picattiny adapter unless your micro reflex sight is designed to mount directly onto a picattiny rail.
I am trying to save you the same headaches myself and others have already went through. You must watch the weight when adding an optic to any rimfire pistol with a reciprocating slide. Others on the KTOG forum have had very similar results as I did the trying to use any reflex sight that uses the RMR footprint. Most of us had to go with optics that use the smaller RMSc footprint.
And I personally would not even waste my time trying to get a tube type red dot to run on the PMR, most tube RDS run anywhere from 3.5 to 5.5 ounces.
A lot of us have already done the homework when it comes to mounting an optic to the PMR. And I am still trying toward on an aftermarket RMR cut Glock G44 slide to get the weight down on it so it will run.
Here is the weight of the Swampfox Kingslayer and their picattiny rail adapter. The optic is 1.4 ounces and the adapter is 0.8 ounces.
And with the Tandemkross mount, you will need a picattiny adapter unless your micro reflex sight is designed to mount directly onto a picattiny rail.
I am trying to save you the same headaches myself and others have already went through. You must watch the weight when adding an optic to any rimfire pistol with a reciprocating slide. Others on the KTOG forum have had very similar results as I did the trying to use any reflex sight that uses the RMR footprint. Most of us had to go with optics that use the smaller RMSc footprint.
And I personally would not even waste my time trying to get a tube type red dot to run on the PMR, most tube RDS run anywhere from 3.5 to 5.5 ounces.
A lot of us have already done the homework when it comes to mounting an optic to the PMR. And I am still trying toward on an aftermarket RMR cut Glock G44 slide to get the weight down on it so it will run.
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Skylerbone
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The RDS is a Vortex Venom designed to mount on a 1913 rail. It’s listed as 1.1 oz and the Zytel rail which mounts directly to the slide is .2 oz so all-in I’m at 1.3 oz. I clean everything after a range session and though .22 WMR is fairly cheap to shoot I don’t plan on more than a few hundred rounds at a time.
@12Bravo20 thank you for the excellent info.
@12Bravo20 thank you for the excellent info.
You are welcome.
Still don't be surprised if you start having issues on the fourth or fifth magazine. I was only able to get about half way through the fifth mag before having issues with my first setup. The is about 120-150 rounds. If you only plan on shooting 1 or 2 50 round boxes at a time and clean the pistol really well afterwards, you should be fine. Me, I like to shoot more and usually shoot between 150-200 rounds at a time.
Still don't be surprised if you start having issues on the fourth or fifth magazine. I was only able to get about half way through the fifth mag before having issues with my first setup. The is about 120-150 rounds. If you only plan on shooting 1 or 2 50 round boxes at a time and clean the pistol really well afterwards, you should be fine. Me, I like to shoot more and usually shoot between 150-200 rounds at a time.
Alte Schule
Member
Burris Fast Fire 3. Only problem is the battery cap backs out after 500 or so rounds.
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Skylerbone
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Any issues with stoppage due to weight? This is the biggest issue I saw posted over the two years I spent window licking. I’ll switch things up if it falters but I think for what I do it won’t be an issue.
The biggest issues I have seen were when myself and others tried using an aluminum mount. As long as you use a super lite polymer/Zytel mount, you should be okay depending on the optic. The best solution that I have found is to use a polymer mount and an optic with the smaller RMSc footprint.
I look forward to seeing what has worked well for others. For me being able to run through at least 200 rounds without a stoppage is necessary.
I look forward to seeing what has worked well for others. For me being able to run through at least 200 rounds without a stoppage is necessary.
I was in the same boat. There is a member on KTOG that makes aluminum mounts so I purchased one of his RMR mounts. As I stated the combo of the aluminum mount and RMR sized optic was too much weight. He does make an aluminum RMSc mount but I have not tried it yet. I was most successful using the Lake Line LLC polymer RMSc mount and a Sig Romeo Zero.
Needless to say an aluminum optic mount and optic is too heavy for the PMR.
Alte Schule
Member
No issues. When I bought the Buriss and Tandemkross mount six years ago it was alleged to be the only optic & mount combo that would work on on the PMR 30. I believe total weight is just over 2 ounces. Replaced the first battery last year.
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I am surprised that you don't have issues once the pistol gets dirty after 4 or 5 magazines. My aluminum mount and Kingslayer were right at 2 ounces and was too heavy for my PMR even when using CCI Maxi Mag's.
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Skylerbone
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I see Tandemkross sells a heavier recoil spring, something I may look into once I begin accessorizing.
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Skylerbone
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starting to come together, almost pulled the Venom from my BuckMark but I’m resolved to wait till PSA sends the new one. First impressions: 1. This pistol is light weight! 2. This pistol is light weight!!! 3. For a factory trigger I’m impressed!
I can still envision a few upgrades like the Tandemkross recoil spring and Suregrip tape and the MCarbo feed ramp. I was a little shocked by the barrel diameter (it’s very thin) but I’m gonna trust it to work. Obligatory pictures with the TK pic rail installed.
I can still envision a few upgrades like the Tandemkross recoil spring and Suregrip tape and the MCarbo feed ramp. I was a little shocked by the barrel diameter (it’s very thin) but I’m gonna trust it to work. Obligatory pictures with the TK pic rail installed.
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Skylerbone
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Update: got the RDS in a few minutes ago and attached the included 1913 base. I didn’t weigh the Tandemkross Freedom Rail but it lists at just under .2 oz. for a combined 1.90 oz. of added weight. If I do experience stoppages, I will remove the aluminum 1913 base and rail then order the Lakeline direct mount.
I think this rig is going to be illegal amounts of fun, even if a bit frustrating while teething! Hoping to get to the range today.
Vortex Venom with included 1913 base plate and battery installed.
Total pistol/optic weight empty. Did I mention it is light?
Weight with 1 magazine and 25 rounds of Winchester Super X 40gr.
I think this rig is going to be illegal amounts of fun, even if a bit frustrating while teething! Hoping to get to the range today.
Vortex Venom with included 1913 base plate and battery installed.
Total pistol/optic weight empty. Did I mention it is light?
Weight with 1 magazine and 25 rounds of Winchester Super X 40gr.
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Skylerbone
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Well...I learned a few things at the range today...
First: the Venom is too heavy as-is. Second, it seemed I did not have enough adjustment range to get on target despite pulling my other Venom and testing it as well.
Second: I learned the “cover” aka the slide, needs the screws installed lest you shoot it off and into your forehead. Second and a half: it doesn’t hurt that much. I had removed the 1913 rail to shoot the pistol with open sights and six rounds into a fast string I received “tactile feedback”.
Third: the PMR 30 really is a fun to shoot little package. While many harangued the idea of using .22WMR for SD, doing a 25 round Mag dump in seconds is enough to make a believer out of me.
Fourth: reliability (after optics removal) was outstanding. I sent 130 rounds down range, 100 in a row without failure to feed. Every last round went bang too.
First: the Venom is too heavy as-is. Second, it seemed I did not have enough adjustment range to get on target despite pulling my other Venom and testing it as well.
Second: I learned the “cover” aka the slide, needs the screws installed lest you shoot it off and into your forehead. Second and a half: it doesn’t hurt that much. I had removed the 1913 rail to shoot the pistol with open sights and six rounds into a fast string I received “tactile feedback”.
Third: the PMR 30 really is a fun to shoot little package. While many harangued the idea of using .22WMR for SD, doing a 25 round Mag dump in seconds is enough to make a believer out of me.
Fourth: reliability (after optics removal) was outstanding. I sent 130 rounds down range, 100 in a row without failure to feed. Every last round went bang too.
The Lakeline RMSc mount and either the Sig Romeo Zero or Swampfox Sentinel is the way to go. Like I stated before, the Lakeline mount and Sig Romeo Zero only added 0.65 ounces to the slide. With the Swampfox Sentinel and Lakeline mount it would be 0.85 ounces added to the slide.
One thing to also take into account is the higher the optic is over the slide, the greater chance of running out of adjustments when trying to zero the optic.
And yes the PMR30 is very fun to shoot. And it makes a great companion to the CMR30. What's not to like about using the same magazines for both.
One thing to also take into account is the higher the optic is over the slide, the greater chance of running out of adjustments when trying to zero the optic.
And yes the PMR30 is very fun to shoot. And it makes a great companion to the CMR30. What's not to like about using the same magazines for both.
BreechFace
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Skylerbone
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Ive got the MCarbo loader in the way now along with the upgraded magazine catch and slide stop. Had no trouble loading 25 rounds by hand in the magazines but may as well save my fingers.
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Skylerbone
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I’m gonna stick to bare slide for now, re-weigh the Vortex sans 1913 base, and consider the Lakeland order. Half the rounds never extracted and so a stiffer recoil spring would actually decrease function rather than aiding the slide back to battery IF extraction remains problematic.
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