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Suppressors 30p-1 w/ 300blk SBR?

raider1v1

Sergeant
Full Member
Minuteman
Mar 16, 2010
357
48
Kansas City, MO
Provided I stay under the temps recommended by TBAC, how short of a barrel could I use in an AR platform? 10" or would i be better w/ a 12 or 12.5"?
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Zak Smith</div><div class="ubbcode-body">10" not a problem.

Ray and I both shoot Noveske 10" .300 Fireball uppers.

-z </div></div>

wow that was a quick response! do you ever sleep or do you just wake up, reply and then go back to sleep?!
 
Re: 30p-1 w/ 300blk SBR?

Funny, I was just thinking about this subject myself as my penny jar is filling up fast for a 30 p 1. Zak, how many rounds of full velocity and/or subsonic blackout is comsidered ok for the can, and in what timeframe? Primary use will be on a bolt gun, but could I play with it on an 16 in. AR blkt for a couple mags at a time without toasting it? I know regular 223 rounds heated up the gemtch steel cans I used very fast.
 
Re: 30p-1 w/ 300blk SBR?

I think you'd be hard pressed to generate a rate of fire that would challenge the 30P-1 using .300 Blk/Whisper/Fireball, unless you were doing many back to back mag dumps with supersonic loads.
 
Re: 30p-1 w/ 300blk SBR?

300 BLK, 10" Noveske, TBAC 30P-1
P1010272_WEB.jpg

Zero problems with supers or subs.
When shooting subsonic loads, it rarely even gets hot.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dr. Phil</div><div class="ubbcode-body">300 BLK, 10" Noveske, TBAC 30P-1
P1010272_WEB.jpg

Zero problems with supers or subs.
When shooting subsonic loads, it rarely even gets hot. </div></div>

excellent!

Dr Phil, I have a few questions about your rifle if you don't mind.

* what hand-guard is that?
* do you find any issues with flexing when you fire, or damaging of the cans finish?
* how do you mount the can w/o damaging the finish? i was thinking of some type of sleeve that I could use when running it down into the rail.

I am planning on running a 15" samson evolution hand-guard over a 12" barrel. I wont have very much clearance. the ID of that rail is 1.8" and the OD of the can is 1.5. That leaves me just about an 1/8" on either side.
 
Re: 30p-1 w/ 300blk SBR?

The upper uses the MK12 MOD0 Spec parts for the most part.
The Rail is a A.R.M.S. 38 SPR-PEQ-2 Sleeve coupled with an A.R.M.S #40 Rear Sight and the PRI Full Length Forearm (Rifle Length).

There is no noticeable flexing.
Clearance initially was an issue due to the length of the screws that PRI uses to attach the rail sections.
I cut them to length, but one could also replace them or leave off the rail sections to achieve the same result.

It is possible to ding the finish of the suppressor while installing or removing it, but it is not an problem if you are careful.
I would think that a sleeve would be a waste.

The rifle is perfectly balanced and is a dream to shoot.
I started the project prior to the release of the 300 BLK after seeing photos of Zak Smith's 300 Fireball upper.
D462_5800_img.jpg

(Thanks again Zak!)
While I was waiting on the Form 4 for my 30P-1, I started wondering about subsonic solutions and this project was the result.
The 300 BLK just happened to be released the same week that I tried to order my 300 Fireball barrel from Noveske. (October 2010)
The Fireball barrels were all gone and the 300 BLK barrels from Noveske were still in development.
I pre-ordered a barrel from Noveke and was lucky enough to receive it just before Christmas 2010.
 
Re: 30p-1 w/ 300blk SBR?

Thanks Zak, that is good to know! The TBAC just keeps getting sweeter!

Dr Phil,

That is one SICK rifle, now you just need some good night optics for it!
cool.gif


One NFA item for me at a time, but that 300 BLK seems made for SBRs. The data with a 9" barrell is amazing, it has more energy at 440 yards with a 9" than a 16" .223 @ the same distance per the BLK websight.
 
Re: 30p-1 w/ 300blk SBR?

Zak, I tried to send a pm, but the website didn't let me do it. I would like to build a .300 BLK SBR like below , but I don't know where to start , and where can I order parts
frown.gif
 
Re: 30p-1 w/ 300blk SBR?

It'll be easier to just buy one in a configuration you want. My upper was built using a Noveske barrel and PRI float tube. You can use any decent upper receiver and bolt carrier group.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: verdugo60</div><div class="ubbcode-body">Dr Phil,

That is one SICK rifle, now you just need some good night optics for it!
cool.gif


One NFA item for me at a time, but that 300 BLK seems made for SBRs. The data with a 9" barrell is amazing, it has more energy at 440 yards with a 9" than a 16" .223 @ the same distance per the BLK websight.
</div></div>
Thanks for the kind words.
That project is by far one of my favorites.
Although getting the MK12 MOD0 look was not cheap…

I haven't gotten into the NVG game yet.
We live out in the country and my wife keeps wanting me to get something that she can observe the local wildlife with, but I can't get over the expense.
I'm sure that eventually there will either be a deal that I just can't pass up, or the desire to get into it will become overwhelming.

The ballistic potential of the 300 BLK is pretty sick.
Subsonic 220 SMKs have more energy at 300 yards than .45 ACP does at point blank.
It is a very capable & versatile cartridge.
As long as you understand and accept that the maximum useful range is about 300 yards and maximum extended range is about 500 yards.
Then new 300 BLK specific bullets coming out are also very promising.
The Barnes 110 Grain TAC-TX and the Barnes TTSX are some of the first to be released.
300-AAC-Blackout-Box-and-Bullets.jpg
nw274.jpg

http://www.barnesbullets.com/products/new-products/new-mle-militarylaw-enforcement-bullet-line/
http://shopwilsoncombat.com/Bullet-762x40WT-110-gr-Barnes-Tipped-TSX-50_Box/productinfo/NW274/

One NFA item at a time?!?
You have to at least double up.
It make the waiting that much easier...
 
Re: 30p-1 w/ 300blk SBR?

If the hand guard longer than the barrel to have that style of weapon, I heard , the suppressor gets so hot, so quickly because it traps and holds the hot gasses that you cannot even hold onto the weapon. Is it true? How much longer your hand guard than the barrel on this SBR?
Dr Phil , on the second photo , what brand is that adjustable butt stock?
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 5.7 2 GO</div><div class="ubbcode-body"> on the second photo , what brand is that adjustable butt stock? </div></div>

It's a Magpul UBR.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">If the hand guard longer than the barrel to have that style of weapon, I heard , the suppressor gets so hot, so quickly because it traps and holds the hot gasses that you cannot even hold onto the weapon. Is it true? </div></div>
Not an issue on the .300 FB/BLK/WHSPR.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Zak Smith</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">If the hand guard longer than the barrel to have that style of weapon, I heard , the suppressor gets so hot, so quickly because it traps and holds the hot gasses that you cannot even hold onto the weapon. Is it true? </div></div>
Not an issue on the .300 FB/BLK/WHSPR.
</div></div>

what about with 223?
 
Re: 30p-1 w/ 300blk SBR?

Dr Phil,
Who sells the lower , and a receiver on your SBR? I can't decide where to buy one, so I will build one , it is looks cheaper. The lowest price I found in quality SBR in .300 BLK is made by PWS, for $1900
My plane is to build a 9-10" barrel pistol, and enjoy it , shoot it till I will receive the paperwork for the SBR and silencer , and when I received them just but a bit longer hand guard like yours and get an adjustable Magpul UBR , and I am done
smile.gif

If I will build one ( I like yours a lot) it can be cheaper than $1900 without silencer , and buttstock? I know some people doesn't like it if I asking what parts was used, but if you don't mind , will you help me out?
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dr. Phil</div><div class="ubbcode-body">
verdugo60 said:
Dr Phil,


One NFA item at a time?!?
You have to at least double up.
It make the waiting that much easier...
</div></div>

Ha, that is not by choice friend, but I just convinced the wife how much I "need" a TBAC instead of a Stainless can that I originally was getting. Those do seem like great bullet choices. They will only get better as the blackout gets more popular.

As for a 500 yard limit, that would not be a problem for most people, weather they use it professionally or not. To have a platform that will cycle with subsonics with a wallop like that is all those who "do it" need.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 5.7 2 GO</div><div class="ubbcode-body">Dr Phil,
Who sells the lower , and a receiver on your SBR? I can't decide where to buy one, so I will build one , it is looks cheaper. The lowest price I found in quality SBR in .300 BLK is made by PWS, for $1900
My plane is to build a 9-10" barrel pistol, and enjoy it , shoot it till I will receive the paperwork for the SBR and silencer , and when I received them just but a bit longer hand guard like yours and get an adjustable Magpul UBR , and I am done
smile.gif

If I will build one ( I like yours a lot) it can be cheaper than $1900 without silencer , and buttstock? I know some people doesn't like it if I asking what parts was used, but if you don't mind , will you help me out? </div></div>
I build all my own stuff and SBR the reciever on a Form 1.
The lower is a LAR Grizzly and the upper that I built the 300 BLK on is a Spike's Tactical. (stripped)

As far as a parts list goes, no problem.
MK12 MOD-BLK
P1010272_WEB.jpg

- Upper:
LAR Forged A3 Upper Receiver
Tear Drop Forward Assist
LWRC dust cover with black spring
LMT Enhanced Bolt Carrier
LMT Enhanced Bolt
LWRC Advanced Cam Pin
PRI Gas Buster Charging Handle
Noveske 10" 300 BLK Barrel
PRI Gen 3 Tube
A.R.M.S. #38 SPR MOD Sleeve
A.R.M.S. #40 flip up rear sight
A.R.M.S. #22 Rings with TRR and TRC
Leupold 3.5-10x40 Mark 4 LR/T M3 Front Focal Riflescope, TMR Reticle
Tango Down ACB-4 Bipod

- Lower:
LAR Forged Lower (Form1 Registered SBR)
Falcon Ergo Ambi Grip
RRA 2 Stage LPK
Magpul Trigger Guard
Magpul B.A.D. Lever
CQD Rear Sling Mount
LWRC Buffer Tube( with increased drainage capacity for maritime operations)
LWRC CS Action (Buffer) Spring
DPMS H2 Buffer
LMT SOPMOD Stock
 
Re: 30p-1 w/ 300blk SBR?

Whatever I want to order, either the parts what DrPhil mentioned, or a complete uppers, or just barres, everything is backordered. How they can have enough in stock? Every time when I want something is backordered ...
smile.gif

No clue what to do.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 5.7 2 GO</div><div class="ubbcode-body">Whatever I want to order, either the parts what DrPhil mentioned, or a complete uppers, or just barres, everything is backordered. How they can have enough in stock? Every time when I want something is backordered ...
smile.gif

No clue what to do.</div></div>
Best bet is to backorder the items you want.
If you try to only buy in stock items, you will be very limited in your choices.
The only other option is to check daily in the for sale sections here or keep an eye out on gun broker.
As November gets closer, availability is going to become less and less.
The earlier you get in line for an item, the sooner you will get it.

Just make sure that if you do backorder an item, it is done through a reputable company.
You will be safe using sponsors and other manufactures seen on this site.
Anyone who is not "up to par" is quickly strung up / run off the site.

If you are trying to replicate my build, there are two parts that will be next to imposible to find.
- The LWRC Enhanced Cam Pin
It is no longer listed in their catalog.
- The A.R.M.S. #38 SPR PEQ 2,3 rail
I don't think A.R.M.S. is manufacturing them any more.
It has been over a year since I have seen anyone list them "In Stock"
PRI is manufacturing their own SPR rail though.
10026_46570.jpg

http://www.precisionreflex.com/Detail.aspx?PROD=186825&CAT=4209
It looks very similar and serves the same purpose.
 
Re: 30p-1 w/ 300blk SBR?

Thank You!
I try to look around, and order it 1 by 1 . I found a barrel , but I will go a shorter one. Also I will go a shorter tube hand guard. My main "hunt" is to finish order everything for the upper, the lower can be wait. I want to build as a pistol , and will start a paperwork for the lower, so while I will wait for the SBR paperwork, I will have a gun to enjoy
smile.gif

I am not even sure if I want Noveske barrel, and I would like a FDE color for the lower, and the upper if possible as well, so it will be a different looking gun
smile.gif
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 5.7 2 GO</div><div class="ubbcode-body">Thank You!
I try to look around, and order it 1 by 1 . I found a barrel , but I will go a shorter one. Also I will go a shorter tube hand guard. My main "hunt" is to finish order everything for the upper, the lower can be wait. I want to build as a pistol , and will start a paperwork for the lower, so while I will wait for the SBR paperwork, I will have a gun to enjoy
smile.gif

I am not even sure if I want Noveske barrel, and I would like a FDE color for the lower, and the upper if possible as well, so it will be a different looking gun
smile.gif
</div></div>
No problem...
I would avoid buying things in FDE though.
They will be more expensive, harder to find, and the shades seldom match.
The better choice is to get the entire gun coated FDE once it is done.
Everything will look much better that way.
 
Re: 30p-1 w/ 300blk SBR?

I've run 300s as short as 8 inches and as long as 16; to me, the sweet spot (best sound reduction) is about 11-12 inches. My 8" was LOUD, even with a can and shooting subsonics.

Everything is a trade-off.

Buy what you want, don't cut corners.

A Noveske-built upper will hold it's value pretty well, should you ever need to sell it.

And home-built 300s can take some tweaking to get the gas system and the recoil system set up to be reliable, just FYI.
 
Re: 30p-1 w/ 300blk SBR?

I found an excellent deal, I couldn't leave it, so I bought an already built Pistol. I will start the process for SBR, and for the suppressor. Here is what I got:
pistol.jpg


I will update with the parts info.
 
Re: 30p-1 w/ 300blk SBR?

5.72: I know the process of turning a rifle into an SBR, but how do you get a pistol in 300 blackout? Can you just put an 8" upper on already manufactured "pistol" lower?

I'm assuming I couldn't just pull the stock off my regular AR lower and slap a 10" blackout upper on it right? It has to be made and registered as a pistol?

Just trying to decide on if I should just save up and SBR a lower while I wait on my can, or do a pistol first.
confused.gif
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dr. Phil</div><div class="ubbcode-body">Must be registered as a pistol lower...
Then you can Form 1 it to an SBR.

You cannot take a rifle receiver and put a sub 16" upper on it unless it is an SBR. </div></div>

That's what I thought. Thanks!

RRA has them for about $220...hmmm.
 
Re: 30p-1 w/ 300blk SBR?

I changed my profile name from 5.7 2 Go, anyway, Somebody already built this pistol, and I am buying now through an FFL licensed dealer. When I will have the money, I will start the legal paperwork process to make it a silenced SBR.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: A MAGYAR</div><div class="ubbcode-body">I changed my profile name from 5.7 2 Go, anyway, Somebody already built this pistol, and I am buying now through an FFL licensed dealer. When I will have the money, I will start the legal paperwork process to make it a silenced SBR. </div></div>

That thing will be sick with a magpul stock or something on the back end!
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rancid Coolaid</div><div class="ubbcode-body">I've run 300s as short as 8 inches and as long as 16; to me, the sweet spot (best sound reduction) is about 11-12 inches. My 8" was LOUD, even with a can and shooting subsonics.

Everything is a trade-off.

Buy what you want, don't cut corners.

A Noveske-built upper will hold it's value pretty well, should you ever need to sell it.

And home-built 300s can take some tweaking to get the gas system and the recoil system set up to be reliable, just FYI. </div></div>AAC quotes 126db subsonic with their SR7 on their 9".
That's very quiet, and I assume it's muzzle, not ear.
What suppressor and barrels were you testing with?
Thanks.
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: A MAGYAR</div><div class="ubbcode-body">This is my plan
smile.gif
I did with photoshop:
Plan.jpg
</div></div>

I would be very, very cautious of putting such things online. Though it may be a photoshop mashup, BATFE takes these things very seriously, and the picture 'appears" to be an SBR weapon that is not a registered SBR weapon.

Maybe the moral is that you should suck more with photoshop, or make it an obviously layered photo.

This is "10 years in pound-me-in-the-ass federal prison" serious.

Just trying to help.
 
Re: 30p-1 w/ 300blk SBR?

Are you kidding right? So if I do photoshop as an artist , do you think somebody will give me a problem? I used photoshop 98% of my photos, like a half face person with skull sticking out, and it would be considered as murderer ? Come on man, I know you want to help, but it suppose to be a free country, specially for art.. I made the "silencer" on my photo angled for purpose , and a buttstock is bigger than it in real life. Just relax..
smile.gif
 
Re: 30p-1 w/ 300blk SBR?

Does there need to be any modification made to the gas block when going from shooting suppressed to unsuppressed?
 
Re: 30p-1 w/ 300blk SBR?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dr. Phil</div><div class="ubbcode-body">300 BLK, 10" Noveske, TBAC 30P-1
P1010272_WEB.jpg

Zero problems with supers or subs.
When shooting subsonic loads, it rarely even gets hot. </div></div>

Love it, looks great, but you're missing the front sight!
 
Re: 30p-1 w/ 300blk SBR?

you guys f'n ruined me. that 300 blk SBR is sexy as hell....

now i got to go fill out my Form 1. ha!