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Site News Could You Have Stopped This? Vegas Shooting Analysis with Attorneys on Retainer
3/29/2013 7:45:51 PM EDT
I just finished building my Mega Maten set and the bcg will not come back far enough to grab a round out of the mag....???  I took the buffer spring out, reinstalled the buffer then insterted the carrier and it still needs to come back another 1/4-3/8 of an inch?..

The specs are:

PRS stock
AR10 rifle buffer and spring
CMMG carrier
JP enhanced bolt

Please help....I am lost.  

My carrrier is 7 13/16" , the carrier with bolt in 8 7/16" and with the bolt out it is 8 3/4".  If that makes any sense.
3/29/2013 7:50:23 PM EDT
[#1]
Is your PRS the ar10 version?

If yes you need a DPMS buffer they are different than the  ar10 or Armalite .
3/29/2013 7:52:05 PM EDT
[#2]
Yes it is for a AR10....,

There is a different buffer?  Let me guess it is shorter....
3/29/2013 8:58:10 PM EDT
[#3]
Quoted:
Yes it is for a AR10....,

There is a different buffer?  Let me guess it is shorter....




So your using a CMMG carrier w/ a JP Bolt ?...There might be your problem...The AR-10 and DPMS pattern (CMMG) bolts/carriers  are not compatable AFAIK.
3/30/2013 4:09:27 AM EDT
[#4]
Then JP enhanced comes in a DPMS style, the buffers a different between  Armalite and DPMS
3/30/2013 4:21:58 AM EDT
[#5]
A DPMS 308 rifle buffer is 5.285 inches long, measure the one up are using and see if that is the problem..

You may have a standard ar15 buffer which is longer at 5.875 measure and see what youhave..if its almost six inches that is the problem.
3/30/2013 9:38:20 AM EDT
[#6]
You nailed it.  5 7/8" it is.  I will get the right one next week!    

Thanks for your help!
3/30/2013 10:18:29 AM EDT
[#7]
your welcome, the most difficult problems to diagnose in these are buffer. bolt carrier related since there is no standard.
3/30/2013 12:58:35 PM EDT
[#8]
I made the same mistake on the 308 AR I built. Live and learn.
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