NEW JP Silent buffer/spring assembly WOW

[MarkCO]

This is brand new, and unfortunatley the first batch is gone, but I got one to test out. http://www.jprifles.com/1.4.7.2_os.php I ran a few hundred rounds on it today, incluidng 50 through the .450 Bushmaster. Extremely impressed. It knocked out a substantial amount of recoil and eliminated the impact bounce at the end of the carrier travel. The sound is almost completely gone in the stock. Plus, you get to remove the worrisome buffer retainer (I already had) and still won't get smacekd in the face by a run-away buffer and spring. The springs can be swapped out to adjust the recoil impulse. Also, the assembly weighs about 10 ounces!

That other thread about buffers and weights and such...out-dated technology.

[Texas Sheepdawg]

Okay. Now to get one for gunny to test. How much do they cost?

[MarkCO]

I think the retail is about $125.

[ColoradoKid]

This is good news!

LOL... being a black rifle newb, the first time I fired my .450 I heard this twang sound after the first round and thought to myself.... what in the....

Then it occurred to me that it was the buffer system. Didn't bother me too much after that, but if there is a way to subdue this sound then I'm in! Especially if the system is reliable and economically friendly.

[simpleman]

I had the same thought the first time I fired an AR 15. That sounds cheap. I bought one that is made of music wire. About twice the price of standard spring but makes the stock much quieter. A hydraulic buffer will help as well.

[mnhornet]

Yep, it's like shooting a pogo stick, if any of you kids know what that is. The "boing" never really bothered me too much. It bothers me more that JP, that brilliant bastard, came up with another ingenious way for me to spend money.

[bigboreshooter]

It cant be used with a weighted carrier, so some folks will still need those outdated parts.

[MarkCO]

It cant be used with a weighted carrier, so some folks will still need those outdated parts.

While a weighted carrier is not the best solution for recoil reduction nor keeping the bolt locked longer, I wonder why you say this new system can not be used with a weighted carrier.

[bigboreshooter]

It cant be used with a weighted carrier, so some folks will still need those outdated parts.

While a weighted carrier is not the best solution for recoil reduction nor keeping the bolt locked longer, I wonder why you say this new system can not be used with a weighted carrier.

snip" The JPSCS is not compatible with any 9mm AR variant or any blowback system using a solid (weighted) carrier."

Gotta read the fine print.

[MarkCO]

snip" The JPSCS is not compatible with any 9mm AR variant or any blowback system using a solid (weighted) carrier."

Gotta read the fine print.

Read the fine print, and talked to John himself. No problems at all if you understand that is intended towards function with .223 and a solid carrier. Our .450BMs are overgassed by about 50%. Plus, you can adjust the spring. I've already increased the spring past the .308 for the .450 BM. It's all about understanding the interplay between gas, reciprocating mass and spring weight.

The best thing to do is turn down the gas and use a better spring system. Adding weight to the BCG might be cheaper, but it is the least effective of the good options.