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View Full Version : POF 308 replace stock with PRS parts question


problemchild
07-08-2009, 1:05 PM
Hi

I was wondering if some of you with more knowledge then myself could answer this question? I called POF and they were NO help in the matter. I called Magpul and got a recording with a message that said they were "BUSY" but to leave a message. So now Im posting here.

I want to remove my VLTOR stock from my 20" POF 308 factory rifle. I would like to install a Magpul PRS stock. What parts will I need and what brand? What spring tension? What length tube? What kind of buffer and how big etc?

I want to buy the best parts I can so I wont have reliability issues later.

Thanks in advance for the help.......

turbochris
07-08-2009, 1:28 PM
http://www.magpul.com/pdfs/technotes/prs/TN-PRSInstall.pdf

a2 style tube, buffer, spring. w/o the spacer.
hope that helps.

rumblebee
07-08-2009, 1:31 PM
I believe that you'll just need a std A2 tube\buffer and spring. The only thing you'll have an option to upgrade is the buffer (if you wish).

from Magpuls website-
Note: The PRS™ is a direct replacement for an A1 or A2 fixed stock. Fitting to a Carbine will require a Rifle Receiver Extension tube, Rifle Buffer and Spring (not included).



Hopefully someone will come by who owns already and double\tripple verify ;) (I own the AR15 version PRS)

Rommel
07-08-2009, 1:37 PM
You need the normal rifle tube, not the carbine rifle tube. You will also want the DPMS rifle (not carbine) 308 buffer and spring.

I am not sure but maybe the carbine buffer and spring will work too?

problemchild
07-08-2009, 1:48 PM
Hi
Thanks

So what brand is best? Armalite? DPMS? Or other? Is the spring the same in all 308's or is there a different spring LB/tension? Is the buffer the same mass/weight or different? Would the buffer be the same or different?

Rommel
07-08-2009, 1:54 PM
I believe the DPMS rifles come with DPMS parts so I would use those again....

problemchild
07-08-2009, 1:56 PM
I believe the DPMS rifles come with DPMS parts so I would use those again....
Can anyone suggest an IN STOCK source for these parts?

Rommel
07-08-2009, 2:16 PM
Midway USA has them...

Jpach
07-08-2009, 2:34 PM
+1 for Midway. I have a PRS on my .308 and it appears all of the information provided in this thread is correct. The only problem is that I have an AR-15 PRS on my .308 AR. Its fine though, I just cant pull the charging handle back the needed .00000000001" to engage the bolt catch.

problemchild
07-08-2009, 5:22 PM
+1 for Midway. I have a PRS on my .308 and it appears all of the information provided in this thread is correct. The only problem is that I have an AR-15 PRS on my .308 AR. Its fine though, I just cant pull the charging handle back the needed .00000000001" to engage the bolt catch.

So did you have to replace your tube, spring and BUFFER or just the tube and spring? What brand parts did you use for your POF? If you changed the buffer what kind did you use?

rumblebee
07-08-2009, 5:30 PM
I would go with Del-Ton or Bravo Company....but, kinda difficult to find kits. You may have to buy\find each one single. Believe it or not, I found\bought all (3) on flea bay. I actually ended up with (2) sets and just sold and shipped one off this am!

You can buy heavier buffers or even hydraulic buffers, that will cut down on the recoil. I think an A2 tube and spring, is an A2 tube and spring...nothing special.

:)

aplinker
07-08-2009, 6:02 PM
http://www.brownells.com/.aspx/pid=24087/Product/A2_Buttstock_Assembly

Just sell off the stock itself.

You need an A1/A2 extension, buffer and spring.

You don't need the stock, bolt or the extender from it.

problemchild
07-08-2009, 7:30 PM
http://www.brownells.com/.aspx/pid=24087/Product/A2_Buttstock_Assembly

Just sell off the stock itself.

You need an A1/A2 extension, buffer and spring.

You don't need the stock, bolt or the extender from it.

Uggh

Thats for ar15 this is a 308 (AR10).

Also 2 people said midway and midway has no parts for ar10 (buffer spring, tube) in full length.

problemchild
07-08-2009, 7:31 PM
I would go with Del-Ton or Bravo Company....but, kinda difficult to find kits. You may have to buy\find each one single. Believe it or not, I found\bought all (3) on flea bay. I actually ended up with (2) sets and just sold and shipped one off this am!

You can buy heavier buffers or even hydraulic buffers, that will cut down on the recoil. I think an A2 tube and spring, is an A2 tube and spring...nothing special.

:)

Bravo company doesnt do ar10---308
Del-ton doesnt do ar10

Just rehashing this is an ar10 POF 308 not ar15 folks.

rumblebee
07-08-2009, 7:36 PM
try-

http://dynamicarmament.com/items/ar-15-mil-spec-parts/list.htm

http://dynamicarmament.com/items/ar-15-mil-spec-parts/a2-butt-stock-tube-a2buttstocktube-detail.htm

http://www.amherst-depot.com/Gunparts.AR15.htm

http://www.ftfindustries.com/mm5/merchant.mvc?Screen=PROD&Store_Code=FI&Product_Code=M1S-BUFFER&Category_Code=AR-PARTS

http://www.usarmory.com/catalog.asp?PAGE=3

:cool:

EBR Works
07-08-2009, 8:19 PM
Here's the spring and buffer that you need and both are in stock at Midway right now:

http://www.midwayusa.com/viewproduct/?productnumber=797669

http://www.midwayusa.com/viewproduct/?productnumber=913498

This is what I used in my POF lower/DPMS upper .308 build. Works flawlessly.

jdhawg
07-08-2009, 8:24 PM
On my POF P308 I used a Magpul CTR stock with a DPMS .308 carbine buffer and .308 spring. I called DPMS and they had them in stock even though their website indicated otherwise. You do not need any other AR10 specific parts for this rifle as POF designed it to be completed with standard AR15 parts except for the forward takedown pin which is a little longer and must be ordered from POF. With the PRS stock use the DPMS .308 rifle length spring and rifle buffer. This is what Chris told me at POF and my rifle works perfectly.

fguerra
07-08-2009, 9:34 PM
Here's the spring and buffer that you need and both are in stock at Midway right now:

http://www.midwayusa.com/viewproduct/?productnumber=797669

http://www.midwayusa.com/viewproduct/?productnumber=913498

This is what I used in my POF lower/DPMS upper .308 build. Works flawlessly.

+1 on getting them from Midway. Ordered the buffer and spring on Monday and received them today. Just finished slapping the PRS on my POF-308.

To the OP just order a standard A2 stock tube, the DPMS 308 rifle buffer, 308 rifle spring, and you're good to go.

EBR Works
07-08-2009, 10:09 PM
Yep, the DPMS rifle buffer tube is out of stock with Midway. This will work as well:

http://www.midwayusa.com/viewProduct/?productNumber=392016

problemchild
07-09-2009, 9:02 AM
Yep, the DPMS rifle buffer tube is out of stock with Midway. This will work as well:

http://www.midwayusa.com/viewProduct/?productNumber=392016


Sorry to be such a pain but this is for an ar15???

Are the ar15 tubes the same as ar10?

EBR Works
07-09-2009, 9:12 AM
Sorry to be such a pain but this is for an ar15???

Are the ar15 tubes the same as ar10?

Yes, they are the same. It's only the spring and buffer that are different.

fguerra
07-09-2009, 9:12 AM
Sorry to be such a pain but this is for an ar15???

Are the ar15 tubes the same as ar10?

Yes the tubes are the same for the 15 and 10. Just make sure you get the 308 buffer and spring that were linked earlier.

walkstep
07-09-2009, 11:24 AM
Make sure you get the Magpul AR10 PRS stock, not the AR15 stock:

http://www.calguns.net/calgunforum/showthread.php?t=172081

dfletcher
07-09-2009, 12:01 PM
I have the POF lower, standard AR tube - listed at Brownells as a "receiver extension I believe - works fine. FWIW, I bought a $25.00 flat coil 308 specific spring (Tubb maybe) and it functioned fine once the gun got going, but using the bolt release for that 1st round from the magazine it didn't have enough "oomph" to push the bolt closed. So I switched to the not so fancy or expensive $9.00 spring and all is well.

fguerra
07-09-2009, 12:05 PM
Has anybody tried the 308 hydraulic buffer? Any problems? Is/was it worth the $100?