moagm316 Posted January 24, 2012 Report Share Posted January 24, 2012 Quote from. http://www.jprifles.com/1.4.7.2_os.php"One of my pet peeves is the sound of a wood rasp coming from my rifle. I find it totally intolerable, even though it is the normal sound of rifles from every other manufacturer. Over the years, we have spent a great deal of time hand prepping our action springs and extension tubes to get that near-silent, glass-smooth feel to our actions. Anyone who owns a JP rifle knows exactly what I mean since it's the most pronounced and immediately noticeable difference the first time someone handles and cycles one of our rifles; the operating system honestly feels like it's running on roller bearings. It's this obsession that we've taken to its natural conclusion after a couple years of thought, design, prototyping and testing our JP Silent Captured Springs (pat. pend.).The best way to describe the results of this innovative system is the complete absence of mechanical feedback from the operating system under live fire and a smooth, silent feel to the rifle when you charge or manually cycle it. No rough, raspy sound or feel. No twang or vibration from the spring during live fire, just the beautiful sound of silence. Even in a very rough extension tube, the rifle runs smooth since the spring never contacts the tube, running instead on a guide rod similar to a 1911 guide rod system.If you've followed the history of ARs, you probably remember the craze for pneumatic AR-15 action systems several years ago. Those pneumatic systems also made for a silent, smooth running rifle, but they had some fatal flaws that the new JPSCS effectively avoids. First, they stop working in the cold due to a little thing called Boyle's Law. The new JPSCS uses an old-fashioned, reliable spring system that works under any conditions and has an innovative buffer system that rides the guide rod with the carrier.The second problem with the pneumatics is that they didn't have the dead blow hammer effect of a true buffer system. An AR-15 without a buffer is a malfunction waiting to happen. The dead blow hammer effect of the buffer is essential to preventing bolt carrier bounce resulting in ignition failure on account of the hammer impacting the firing pin while the bolt is not fully in battery during rapid fire or full auto fire. The buffer also increases the reliability of a rifle by "hammering" the carrier forward to press the action fully into battery even when the chamber is fouled. In the JPSCS, the buffer itself is "captured" in the assembly providing all the mechanical functionality of a standard buffer retainer plunger but with the fringe benefit of greater ease in cleaning and service thanks that comes with a simple drop-in part like the JPSCS.The basic system is available for both AR-15 and LR-308/AR-10 systems with an optional spacer to allow function with either carbine- or rifle-length extension tubes. Thanks to ease of assembly/disassembly, we will also be offering substitute spring kits with a variety of spring rates to let you can experiment to find the rate best suited for your particular setup.I'm already switching every rifle I own over to JP Silent Captured Springs, so don't be surprised if you do the same once you've tried one."It looks interesting what are your thoughts? I will be waiting for some life fire tests. AKA Over the beach. Quote Link to comment Share on other sites More sharing options...
imschur Posted January 24, 2012 Report Share Posted January 24, 2012 Very cool Quote Link to comment Share on other sites More sharing options...
Jgun Posted January 25, 2012 Report Share Posted January 25, 2012 I'd give this a try. I wonder if this thing is tuned to work with their lightened .308 BCG? That would be a neat setup in a competition .308 AR. Quote Link to comment Share on other sites More sharing options...
draco41 Posted January 26, 2012 Report Share Posted January 26, 2012 DAM YOU MAN!!!! More money out the door <thumbsup> Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted January 26, 2012 Report Share Posted January 26, 2012 Yup, that's what we're here for <thumbsup> Quote Link to comment Share on other sites More sharing options...
unforgiven Posted January 26, 2012 Report Share Posted January 26, 2012 Impressive <munch> Quote Link to comment Share on other sites More sharing options...
moagm316 Posted January 26, 2012 Author Report Share Posted January 26, 2012 The thing that I am wondering though is what is the life of this system. This might not be a good solution for a SHTF rifle. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 26, 2012 Report Share Posted January 26, 2012 That buffer spring noise in your ear, that some people think is annoying - that always lets me know when I just fired my last round in the mag. When the bolt locks back, it's a completely different sound, and you know it right away. You know it's coming, and when you hear it, you change mags fast. <dontknow> Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted January 26, 2012 Report Share Posted January 26, 2012 That buffer spring noise in your ear, that some people think is annoying - that always lets me know when I just fired my last round in the mag. When the bolt locks back, it's a completely different sound, and you know it right away. You know it's coming, and when you hear it, you change mags fast. <dontknow> <thumbsup>Jon Quote Link to comment Share on other sites More sharing options...
survivalshop Posted January 26, 2012 Report Share Posted January 26, 2012 Its odd I've only had one rifle that I've heard that noise.I can not recall hearing it in any of the rifles I now own .A fix for a non existing problem & not time tested or battle proved . Not that , Battle proved really means much , for a bench rifle or safe queen , but time is another thing.Nothing wrong with a safe queen , the rifles or hand guns I do not take to the range that day are all safe queens .I believe that noise is a spring binding problem of some sort . Could be something in the receiver extension , buffer or the spring its self . Quote Link to comment Share on other sites More sharing options...
unforgiven Posted January 26, 2012 Report Share Posted January 26, 2012 I must be deaf cause I'm consentrating on my shooting never notice spring noise. <dontknow> Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted January 26, 2012 Report Share Posted January 26, 2012 It's kinda like the .45 GAP... No one really understood why we needed it, but damn it was expensive! Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted January 26, 2012 Report Share Posted January 26, 2012 It's kinda like the .45 GAP... No one really understood why we needed it, but damn it was expensive!I know one guy that had a gun in .45 GAP. During the great ammo shortage he was like "What ammo shortage?" GAP being the only stuff sitting on shelves.It was a fun gun to shoot!Jon Quote Link to comment Share on other sites More sharing options...
moagm316 Posted January 27, 2012 Author Report Share Posted January 27, 2012 I have not hear that sound either. I use good springs in all my rifles. Quote Link to comment Share on other sites More sharing options...
Guest LLArms Posted January 30, 2012 Report Share Posted January 30, 2012 Our prototype was going to be running the Enindine buffer setup - but if the JP silent spring setup can offer the same performance and makes it quieter we will go that route.And its $5.00 cheaper! <laughs> Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted January 30, 2012 Report Share Posted January 30, 2012 Unless you plan on running the LMOS in your prototype too, I wouldn't bother with this newer designed buffer. JP stuff is designed to work with JP stuff first. If it works with other makers, that is just a bonus for them.If you want something different than the Enidine, you can also try the MGI Rate Reducing Buffer. Although i think the Enidine is a win. Quote Link to comment Share on other sites More sharing options...
Matt.Cross Posted January 30, 2012 Report Share Posted January 30, 2012 Not very thrilled with the Enidine at the moment, if anyone wants to try one out at the cost of shipping, I'll happily put it on loan. Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted January 30, 2012 Report Share Posted January 30, 2012 Matt, what version is that? I have the 308 full size version. Quote Link to comment Share on other sites More sharing options...
Guest LLArms Posted January 30, 2012 Report Share Posted January 30, 2012 Most of our recoil elimination is coming from the JP Muzzle Brake, our own prototype shroud + modular weight system - all the other additions we view as a small piece towards the overall goal.I too have heard that the Enindine setup is not producing the just "out of this world" performance increase that most people expect. However we still feel it is a nice upgrade to go along with all the other upgrades.Our other major upgrade is swapping out the DPMS lower and upper receivers to the MA-Ten Mega forged set.Thanks for the heads up on the JP product though - I had not considered that. Hmm... ???Not very thrilled with the Enidine at the moment, if anyone wants to try one out at the cost of shipping, I'll happily put it on loan.Have you considered selling it? We like good condition used parts in prototype units. <laughs>PM or E-mail me if its something you want to consider. Quote Link to comment Share on other sites More sharing options...
Matt.Cross Posted January 30, 2012 Report Share Posted January 30, 2012 Matt, what version is that? I have the 308 full size version.That's the same thing I have. I tried it out in the MA TEN, but it caused reliability problems.Most of our recoil elimination is coming from the JP Muzzle Brake, our own prototype shroud + modular weight system - all the other additions we view as a small piece towards the overall goal.I too have heard that the Enindine setup is not producing the just "out of this world" performance increase that most people expect. However we still feel it is a nice upgrade to go along with all the other upgrades.Our other major upgrade is swapping out the DPMS lower and upper receivers to the MA-Ten Mega forged set.Thanks for the heads up on the JP product though - I had not considered that. Hmm... ???Have you considered selling it? We like good condition used parts in prototype units. <laughs>PM or E-mail me if its something you want to consider.I don't mind selling it at all. It's lightly used, if you want to test it before you buy I'll gladly do that too. Up to you, just PM me. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted January 31, 2012 Report Share Posted January 31, 2012 If you want a good spring set up , get a Superior spring (Tubbs ) spring to try out . I have one in my 16" 308 & it will change your mind about springs & the effect they have on the performance of a AR.First , there is no noise , of course .The ejected case's drop right where they should & in a neat pile. I have to do a Chrono test this year for the difference in bullet velocities between the two springs , because the say it should increase with the Superior spring co. spring .( longer lock time )We will see, when I get the time . Quote Link to comment Share on other sites More sharing options...
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