.224 Valkyrie Buffer & Spring....which one?

[USMC 308]

Waiting on a Craddock build, 22" barrel. Getting my lower in order. For a rifle length buffer tube, which spring/buffer combo would work best? Not shooting suppressed.

I know nothing about the JP Silent Capture system. Is it true you remove the buffer retaining pin if run the JP?

Thanks for any assistance.

 

[max1840]

I run the JP SCS in my 22" rifle length Valkyrie. You can't use the regular buffer retaining pin with the JP system but they make a pin you can use if you want. I don't use any.

 

[USMC 308]

Which SCS...is it just a rifle length one? I see many listed so want to pick the right one.

Would a Geissele Super Braided 42 rifle length work with a 5.4 oz buffer? If I went the traditional route? Would I want a heavy or standard buffer?

 

[kyzim311]

I run 224 Valkyrie 22" criterion barrel with my normal 223 setup, but it is a carbine length buffer tube. It is very close to the 223 so no need to do anything special. Adjustable gas block is my normal pick as it is a bit more versatile an reasonably inexpensive.

 

[max1840]

Which SCS...is it just a rifle length one? I see many listed so want to pick the right one.

Would a Geissele Super Braided 42 rifle length work with a 5.4 oz buffer? If I went the traditional route? Would I want a heavy or standard buffer?

It would be the AR15 SCS for the .224V. It will fit a carbine setup or a rifle setup by using the spacer that comes with the kit. JP also has additional tungsten or steel weights and springs and spring kits for fine tuning.

 

[TimK]

I’m running an SCS in my 24” Craddock barreled Valk. I like the option of substituting tungsten weights if a little more thump is needed to get the bolt home. In fact, I am running at least one tungsten weight. Might be two. Old fart memory...

Im also using the JP adjustable mass BCG. Pretty slick system. It uses the same weights as the SCS. I’ve started thinking in terms of the combined mass of the buffer and BCG when considering combinations. I again don’t remember the exact details of my setup as it stands today, but it is for sure several ounces heavier than a typical M16 BCG and rifle buffer.

Mine has accumulated green goo in the upper and BCG since day one. Lots of it. The extra mass contributes to reliability in mine for certain. I’m shooting suppressed thus compounding the problem, but I like quiet guns.

 

[PA Valkyrie]

I’m running an SCS in my 24” Craddock barreled Valk. I like the option of substituting tungsten weights if a little more thump is needed to get the bolt home. In fact, I am running at least one tungsten weight. Might be two. Old fart memory...

Im also using the JP adjustable mass BCG. Pretty slick system. It uses the same weights as the SCS. I’ve started thinking in terms of the combined mass of the buffer and BCG when considering combinations. I again don’t remember the exact details of my setup as it stands today, but it is for sure several ounces heavier than a typical M16 BCG and rifle buffer.

Mine has accumulated green goo in the upper and BCG since day one. Lots of it. The extra mass contributes to reliability in mine for certain. I’m shooting suppressed thus compounding the problem, but I like quiet guns.

Waiting on a Craddock build, 22" barrel. Getting my lower in order. For a rifle length buffer tube, which spring/buffer combo would work best? Not shooting suppressed.

I know nothing about the JP Silent Capture system. Is it true you remove the buffer retaining pin if run the JP?

Thanks for any assistance.

I'm running a Sanders 24" 1:6.7T .224 Valkyrie Varmint upper with rifle+2 non-adjustable gas. I use the JP SCS AR-15 buffer in "H2" weight. I bought the deal with the Alternative Spring Pack. I'm glad I did that because it allowed me to fine-tune the system to compensate for not having adjustable gas. I do not use a buffer retaining pin, there is no need. I do not run the adjustable mass BCG.

The JP is not cheap, as you know by now, but it is a very efficient way to tune a non-standard AR setup. Mine needed a lot of experimentation and tuning. I do not shoot factory ammo. My two "standard" loads use the Sierra 77TMK's and the Hornady 88gr ELD-M's.

I must say that during the entire process of load development (20+ loads tested) the JP SCS buffer did it's thing throughout, with no fuss. I think I only played with the spring weight twice to get the final loads working reliably without throwing the brass halfway across the county.

 

[DTdr2]

Waiting on a Craddock build, 22" barrel. Getting my lower in order. For a rifle length buffer tube, which spring/buffer combo would work best? Not shooting suppressed.

I know nothing about the JP Silent Capture system. Is it true you remove the buffer retaining pin if run the JP?

Thanks for any assistance.

I know this thread is a little aged, but what did you decide to go with? I'm building out a Valkyrie with a 22" Wilson Combat Super Sniper barrel with low profile gas block since I'm concerned about the lack of space with the adjustable one & the rail.

 

[Elite_KG]

I had to run the JP-SCS-H2 as well. I tried the stand H version with all the different springs and couldnt get it to run. The H2 runs fine. I’m now using an adjustable gas block as well and the gas is turned down slightly. Craddock Precision 22” +2 gas system.

 

[max1840]

I had to run the JP-SCS-H2 as well. I tried the stand H version with all the different springs and couldnt get it to run. The H2 runs fine. I’m now using an adjustable gas block as well and the gas is turned down slightly. Craddock Precision 22” +2 gas system.

I’m running the exact same set up

 

[USMC 308]

I went with a Geissele buffer spring (Super Braided 42) rifle length and a H2 rifle length buffer.

 

[r.tenorio671]

...if you already have an existing AR15 that functions well, I'd recommend putting your new upper on it and test how it works. That would be the baseline you would then work off to complete your new lower with. As beneficial as others experiences with THEIR configurations may be, ech is unique in some way and may not even align with your intended choices. You want to avoid a "mish-mash" of unused/untried parts in your build that end up not playing well together. If you don't have an available lower to utilize, then I would suggest you go with Craddock's recommendations as he would know what works with his end product. You can always modify/change later, but you want to start with a functioning platform from the get go...