JP silent buffer

[usmc1974]

Is this the correct buffer set up for my JP GMR 15 9 mm? Are the rubber o-ring spacers from JP enterprises stronger than the ones I would get from home Depot?

 

Edited September 25, 2022 by usmc1974

[Orlandoech]

10 hours ago, CGoodwin said:

Interesting! I've owned a MPX previously and liked it a lot. The weight is really not significant IMHO. I do get a stiff charging handle when it gets dirty, kind of frustrating for the cost!

the weight is significant once you use light weight and realize how much it affect transitions. 

[bulldog009]

That's what my setup looks like. Its not a GMR15, but all of my internals and barrel are JP. I've had a couple of the O-rings fail on me, but that was after thousands of rounds and several years of matches. I replaced them earlier this year after I noticed a piece of O-ring had worked its way out of the buffer tube. Was an easy fix with the maintenance package from JP. I don't know about Home Depot rings, but I'm sure you could give it a shot, I don't think it would hurt anything. 

[usmc1974]

3 hours ago, bulldog009 said:

That's what my setup looks like. Its not a GMR15, but all of my internals and barrel are JP. I've had a couple of the O-rings fail on me, but that was after thousands of rounds and several years of matches. I replaced them earlier this year after I noticed a piece of O-ring had worked its way out of the buffer tube. Was an easy fix with the maintenance package from JP. I don't know about Home Depot rings, but I'm sure you could give it a shot, I don't think it would hurt anything. 

Thanks Looks like we both have the short stroke kits. Does your guns bolt hold open on the last round?

[Darqusoull13]

18 hours ago, usmc1974 said:

Is this the correct buffer set up for my JP GMR 15 9 mm? Are the rubber o-ring spacers from JP enterprises stronger than the ones I would get from home Depot?

 

 

Yes, that is the short stroke, 5 stainless model. 

Yes, the o-rings are a special chemistry for the application. 

[usmc1974]

24 minutes ago, Darqusoull13 said:

Yes, that is the short stroke, 5 stainless model. 

Yes, the o-rings are a special chemistry for the application. 

Thanks I called JP rifles and placed an order for replacement o-rings, retainer ring and a new short stroke buffer kit. I figured I might as well replace everything.

Edited September 26, 2022 by usmc1974

[Darqusoull13]

1 hour ago, usmc1974 said:

Thanks I called JP rifles and placed an order for replacement o-rings, retainer ring and a new short stroke buffer kit. I figured I might as well replace everything.

Yep, that's normally what I did. I figured it was cheap enough to replace the whole thing and have peace of mind, kind of like mag springs once a year. 

[jrdoran]

I don't use any o-rings on my aluminum weights for 84pf loads.   It works just fine.