JP Silent Capture Spring

Velocity Chad

Sergeant of the Hide
Feb 10, 2018
190
118
43
The communist state of IL
#4
They do run nice, and alot of ability to customize springs and weights. I don't have them in most of my Ar's, just due to cost. I feel i can get 75% of the smoothness with just the jp polished spring at much less cost. You won't be disappointed in the scs if you get it, but it's a chunk of money for a buffer and spring.
 

bigjake83

Golden Shellback
May 19, 2013
2,520
156
63
Southern Idaho
#6
YES Without hesitation... People not in the know tend to think it just smooths things out, and eliminates the spring sound, and that's true but the real benefit is the ability to adjust buffer weight and spring pressure. The ability to adjust buffer weight and spring tension can turn a 1MOA rifle to a .5 MOA if done correctly.
 
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bigjake83

Golden Shellback
May 19, 2013
2,520
156
63
Southern Idaho
#8
Try it for yourself... I'll even walk you through it.

I would say it has just as much effect as proper bullet seating depth.

I discovered most of this when I was trouble shooting a random flyer issue,
Dave at JP walked me through the steps.

Basically you're fine tuning your Dwell time. You want that bullet well and truly gone and out of the barrel before the next mechanical action starts,. The adjustable springs come into play for the 2nd and 3rd recoil impulse eliminating bolt bounce...

Note: for best results use an adjustable gas block.
 
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Frankly

Sergeant of the Hide
Jan 27, 2018
490
271
63
Spencerport, NY
#9
Yes, they feel smoother shooting and if your cheek is on the rest then you're going to hear the conventional spring's annoying sprong especially with electronic muffs.
 

padom

SuperMod
Staff member
Mar 13, 2013
6,885
821
113
Southeastern, Pennsylvania
#10
I could give 2 shits about the spring noise. Ive been using JP's enhanced buffer spring and Rifle Buffer in all my setups forever. Last year I decided to give the JP SCS a try. I did not have any accuracy issues with my setups. I purchased the alternate spring pack and some tungsten weights with it as well.

The first rifle I tested it in was my custom Bartlein 22" 6.5cm semi. Gun is a straight tack driver but brass gets beat up on the case head on a mild load with the gas block tuned to just lock back on last round. I installed the JP SCS and went to the range along with the springs and weights. I started adding heavier springs and tungsten weights and tuning the gas block to just lock back on last round with each combo.

I finally found the combo that made my rifle butter smooth shooting but most importantly my brass looks like its fired out of a bolt gun. No more bur and swipe on the case head. This made me a believer and I use them in all my semis now.
 

Velocity Chad

Sergeant of the Hide
Feb 10, 2018
190
118
43
The communist state of IL
#17
How is spring life been? I have 2, but neither of them are in guns that get shot a ton. The smaller spring is stressed more than a typical buffer spring. I would think spring life would be less, although not a big deal to change.
 
Jun 13, 2008
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#22
Try it for yourself... I'll even walk you through it.

I would say it has just as much effect as proper bullet seating depth.

I discovered most of this when I was trouble shooting a random flyer issue,
Dave at JP walked me through the steps.

Basically you're fine tuning your Dwell time. You want that bullet well and truly gone and out of the barrel before the next mechanical action starts,. The adjustable springs come into play for the 2nd and 3rd recoil impulse eliminating bolt bounce...

Note: for best results use an adjustable gas block.
The thing is, I have seriously loaded for four competition uppers now, and not one of them ever saw use with a JP springydiddle. Despite? that, every one of them has been a 1/2 to 3/4 Minute prone rifle or better...I'm not even going to get into dude-bro's bench shooting barn wall.

Now I DO use a Tubb flatwire, and two of those uppers are set up for CWS. The 1,000 yard/Palma upper also has an ADIGS (though there's so damn much gas that I don't think it does much).

Dude, I don't doubt that the JP is a good product, and I am quite certain it makes ya'll feel better. It may aid accuracy and component life by increasing dwell time, same as previous products. But as for "tuning" the spring system to make a 1 MOA rifle into 1/2 that....I call bullshit, and there is NOTHING I wouldn't do to fine up the LR upper's groups. Most of it I HAVE done, actually.

I'm not saying you are lying about what you saw, but I AM saying that only an advertising department would think it could make 100% precision improvements on a regular basis.

Numerous guys I shoot against have tried them, and the result has been that a floated milspec BCG and a floated Krieger continue to pound out the 1/2 minute we know and love...regardless of the spring. The only standard result has been "hey cool! It don't sproing no mo'!"

But hell, I will probably have to buy one now, you POS. :) I did say anything...
 
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Likes: dinmax82
Apr 11, 2010
37
3
8
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ID
#23
I have them on most of my rifles. I switched over because they do seem to have a smoother action, but must importantly it eliminates the sproing. Surprised this has not been mentioned yet, but if you shoot suppressed the sproing is much more noticeable. Best known fix for me was the JP SCP. Sold me one for every gun i shoot with a can.
 

Wile_Coyote

New Hide Member
Feb 13, 2018
65
7
8
Florida
#24
I like what it did for my 6.5 Creedmoor. Very tunable. Never really cared about the spring noise, never paid attention. The SCS did quiet it down though. I put then in several of my AR's. The others I just run standard buffers and springs.
 
Apr 4, 2013
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#25
Let me preface this by saying that I'm a JP fan. Now that that is out of the way, the SCS is just an expensive solution looking for a problem in most cases. I don't believe it will enhance accuracy any better than tuning with a gas block.

As for the spring noise, you can fix that with $.10. Just wipe a little dab of bearing grease on your buffer spring. I have a SCS in one rifle, and all the rest have grease on the spring. I'll bet that I can hand you all my rifles and you can pull the charge handle or shoot them and you can't tell which one has the SCS. I've tested it out on people...no one has been able to tell so far. ;) After I learned that trick, I kind of felt stupid for buying the SCS.

All you need is an adjustable gas block, proper weight buffer, and a little spot of grease. (very little is needed or you get grease in the BCG)

If you feel a need and it makes you feel good, go for it. But I would try the grease first. That's my $.02...good luck.
 
Likes: shooter65

mijp5

Gunny Sergeant
May 7, 2009
4,892
2,121
113
#26
My precision AR used to make crashing sounds with the buffer spring. The JP spring made it run ultra smooth with no crash
 
Aug 21, 2011
694
133
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Colorado
#27
Now I DO use a Tubb flatwire, and two of those uppers are set up for CWS. The 1,000 yard/Palma upper also has an ADIGS (though there's so damn much gas that I don't think it does much).
These do the same thing as the Tubb Flat Wire and CWS. You're tuning the mass. I wish DT still sold the CWS.

Lots of people love adjustable gas-blocks. I think tuning the carrier mass works better and it will not fail like an adjustable gas block.
 
Feb 14, 2017
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Arlington TX
#28
I’ve switched every gas gun I have over to the JP except one last AR. They are worth it especially if your running suppressed or wanting a well tuned AR in general. Its smooth, quiet, and offers as much adjustability as you can want.
 
Dec 17, 2017
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#29
I probably don't count to post here, but I just purchased my first one for my Aero 6.5 Creed build. Honestly I only bought it based off reviews I've read over and over and knowing JP makes great rifles and I didn't think they'd sell a pointless product. I wanted to build my rifle with good parts and make it tuneable. Using the SCS just seemed easier to get it where I wanted it easier by changing springs and weights that are captured. It may have been easier using conventional methods but I thought I was on the right path using good companies products. Maybe I was wrong, who knows. Do JPs large frame guns like the LRP07 come with them from the factory? If so how are they set up as far as springs and weights go?
 
Feb 16, 2017
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#30
Yes, they do come with SCS standard and they will be setup based on the caliber needs. You can choose to have them setup however you wish.
 

5RWill

Optics Fiend
Oct 15, 2009
4,420
568
113
27
Mississippi
#31
I've only got one and it's in my AR pistol but having felt several of them it's always on the "to do" list for my ARs. JP polished spring is very nice though too. Smoothest AR i've felt is a friend of mine's who has the SCS, 10,000rds on it, and he polished the interior of his buffer tube. It feels amazing.

I much prefer the SCS to regular, but it's not a cheap upgrade by any means nor a necessary one.
 
Mar 10, 2005
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md
#32
I like them, I have one in my LMT MRP and its a very smooth shooting gun. I tried one in my MWS, and could not get it to run, even with tungston inserts and difffernt springs , there was way too much bolt speed and decided to stick with the standard buffer/spring set up.

for a i wouldnt mind giving it a try in an large frame upper that is not quite so overgassed
 
Dec 17, 2017
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1
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#37
I haven't used my rifle yet, as it's not done but I also put the spacer in. The instructions tell you to run it with a rifle length tube, not required with the carbine tube though. Also says something about making sure the carrier contacts the scs and it should have no movement, or else take it out and drop one quarter in the tube. Or if it's contacting the carrier too much, shorten (grind/sand) the spacer I think it states.
 
May 8, 2013
207
55
28
Portland
#38
YES Without hesitation... People not in the know tend to think it just smooths things out, and eliminates the spring sound, and that's true but the real benefit is the ability to adjust buffer weight and spring pressure. The ability to adjust buffer weight and spring tension can turn a 1MOA rifle to a .5 MOA if done correctly.
So reading a lot about scs I was just wondering if this helps in load development? I picked up a MSR 10 in 308. Had some issues and sent it back. When they returned it they said it shot .5 at 100 with FGMM 168 smk. I don't shoot factory ammo but I did try a box and yes it shot 2 .5 groups! Now I mainly shoot 175/178s but not what I'd call good. In your opinion would scs fix this or do I need a good load first? Brass looks good but cases need a lot to resize. Thanks
 

bigjake83

Golden Shellback
May 19, 2013
2,520
156
63
Southern Idaho
#39
Lol.... Load first brother, the SCS is good for smoothing things out, dwell time, and buffer weight/ speed. It can improve your accuracy, but only really if your current set-up is completely wrong, but since you're shooting a production rifle I'm sure its configured properly, maybe a bit crude but the weight and spring ratio should be correct.

So yes start in your reloading room, and once you get your pet loads them fine tune it with SCS, also if your rifle is shooting .5 MOA with 168 FGMM Savage could have chambered it to Favor the 168's and could be a reason why your 175/178's aren't playing well. I would also buy a few boxes of 175 FGMM and some Hornady 178 factory ammo to test, it could also be as simple as your reloading skills suck.

I would still strongly recommend getting the JP SCS, I've seen people to many times make the switch and instantly shrink their groups, and since I just about always build my ARs I've personally seen what it can do, just how perfect you can tune a rifle.
 
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Likes: Frankly
May 8, 2013
207
55
28
Portland
#40
Lol.... Load first brother, the SCS is good for smoothing things out, dwell time, and buffer weight/ speed. It can improve your accuracy, but only really if your current set-up is completely wrong, but since you're shooting a production rifle I'm sure its configured properly, maybe a bit crude but the weight and spring ratio should be correct.

So yes start in your reloading room, and once you get your pet loads them fine tune it with SCS, also if your rifle is shooting .5 MOA with 168 FGMM Savage could have chambered it to Favor the 168's and could be a reason why your 175/178's aren't playing well. I would also buy a few boxes of 175 FGMM and some Hornady 178 factory ammo to test, it could also be as simple as your reloading skills suck.

I would still strongly recommend getting the JP SCS, I've seen people to many times make the switch and instantly shrink their groups, and since I just about always build my ARs I've personally seen what it can do, just how perfect you can tune a rifle.
Thanks for the good advice. I did send savage 2 dummy rounds with 178 eldx. They said shoot the FGMM 168 and yes they shoot. SD 6.4 es 19 and av 2626
Ran some FGMM 175. SD 9.7 es 25 av 2570. I'll work on my home brew. Thanks again
 
May 20, 2011
7
0
1
State of Jefferson
#41
as once said the only way to fly they work and are worth the extra cash custom tweek the recoil and recovery very nice have them in every weapon I've built cannot do better for the longer tubes they supply a plug that takes up space
 

Mute

Sergeant
Sep 9, 2003
714
73
28
52
Diamond Bar, CA
www.amtraininggroup.com
#43
If you need to shoot fast, this system does help. Assuming you have the time and patience to get everything dialed in it's worth it if you need the advantages it can give you. Outside of that, I don't think it's a necessity. I don't think I'd pay the extra just so much gun can shoot smoother. For competitors, I can certainly see why'd they would use it. If I were shooting 3 gun or any events that require some speed, I would definitely run with a JPS in my rifle.
 
Apr 22, 2010
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Mansfield, TX
#44
These do the same thing as the Tubb Flat Wire and CWS. You're tuning the mass. I wish DT still sold the CWS.

Lots of people love adjustable gas-blocks. I think tuning the carrier mass works better and it will not fail like an adjustable gas block.
I'm inclined to agree with the last part. Science and all, with a given load, and correct port size, BCG mass is where it logically should be at. I have an adjustable gas block on my .260 that isn't ever right no matter what I do. Would love nothing more than to put a regular gas block on that, pin it in place, and then work the BCG to tune it. Not sure of a BCG out there that I could do that with..
 
Aug 21, 2011
694
133
43
Colorado
#45
I have an adjustable gas block on my .260 that isn't ever right no matter what I do. Would love nothing more than to put a regular gas block on that, pin it in place, and then work the BCG to tune it. Not sure of a BCG out there that I could do that with..
I ran my Tubb CWS / heavy tungsten weight in my 260 with a standard gas block ;)
 
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