Anyone run a JP enhanced bolt assembly in a different carrier? Would this be better than any other brand 6 arc bcg? (Odin, cmc, etc). Thanks.
- Thread starter JDLawrence3
- Start date
When I built my Valkyrie, I used a JP bolt in a toolcraft carrier, no issues at all. The gas seals seem way to loose on the JP bolts, but I think that’s how they are supposed to be? I know mine would never pass the “stand it on end” test, but the gun runs like a clock.
The reason I did this was because I bought a JP barrel and it came with the bolt. It only made sense to use it because it was headspaced to my barrel and JP makes the best stuff. I would have had it in a JP carrier too but I’m cheap lol. Gun shoots sub MOA so I can’t complain.
I knew I’d read that somewhere but couldn’t remember. Thanks.
I've used the JP bolt in a Rainer and RCA carrier, no issues.
I used dozens of JP Enhanced .223 bolts with (now discontinued) Young Manufacturing National Match bolt carriers for several years with excellent results. 
"The reason I did this was because I bought a JP barrel and it came with the bolt. It only made sense to use it because it was heads& a reputable suppliers carrier "
"
Regardless of what you might think, JP didn't do anything special like making a particular bolt for your particular barrel & extension., They make them all to the same specs & dimensions, went to the bolt bin, pulled one & simply confirmed that it actually did HS to your barrel..............nothing more, nothing less. Virtually any bolt from any major, quality supplier will HS correctly to a properly made extension & chambered barrel. The specs for the bolt, extension & chamber are well defined if adhered to. It's always a good idea to verify HS before assembling a bolt / barrel combination & I do, but in some 35-40 builds, I've found exactly one barrel that the manufacturer purposedly HS'd tight, that did not pass a HS test. It was easily corrected & performs just fine. (That barrel manufacturer has since changed their philosophy in how tight to set their barrels / extensions to) And yes, as others have said, JP bolts (with their cam pin) will fit any quality carrier just fine; I've used several as JP's finish on their bolts is the best available; their carriers are way over priced, however, but they are very nice also. MM
"
Regardless of what you might think, JP didn't do anything special like making a particular bolt for your particular barrel & extension., They make them all to the same specs & dimensions, went to the bolt bin, pulled one & simply confirmed that it actually did HS to your barrel..............nothing more, nothing less. Virtually any bolt from any major, quality supplier will HS correctly to a properly made extension & chambered barrel. The specs for the bolt, extension & chamber are well defined if adhered to. It's always a good idea to verify HS before assembling a bolt / barrel combination & I do, but in some 35-40 builds, I've found exactly one barrel that the manufacturer purposedly HS'd tight, that did not pass a HS test. It was easily corrected & performs just fine. (That barrel manufacturer has since changed their philosophy in how tight to set their barrels / extensions to) And yes, as others have said, JP bolts (with their cam pin) will fit any quality carrier just fine; I've used several as JP's finish on their bolts is the best available; their carriers are way over priced, however, but they are very nice also. MM
Last edited:
Just to add, I started a thread on arfcom about this same topic, but using a JP enhanced bolt assembly in a toolcraft carrier. The complete different feel of the bolt in the carrier was messing with my head as well.
After some back and forth with a few helpful members, I took the gun to the range and it ran like a scalded dog. In fact, it was the most accurate session I’ve had with the gun since I built it.
Did the JP bolt contribute to the accuracy? I don’t know. Most likely it was just me getting better with a new rifle and having the opportunity to focus instead of making sure my kids were enjoying themselves/learning.
But it ran smoothly and without a hiccup. I’m very happy I spent the money.
After some back and forth with a few helpful members, I took the gun to the range and it ran like a scalded dog. In fact, it was the most accurate session I’ve had with the gun since I built it.
Did the JP bolt contribute to the accuracy? I don’t know. Most likely it was just me getting better with a new rifle and having the opportunity to focus instead of making sure my kids were enjoying themselves/learning.
But it ran smoothly and without a hiccup. I’m very happy I spent the money.
Similar threads
