This bolt assembly is compatible with the JP LRP-07 and the DPMS LR-308 platforms (or clones thereof) only and cannot be used to replace bolts in the Armalite AR-10 platform (or clones thereof). This bolt uses a specialized firing pin that is not compatible with other bolts nor can it use standard .308 firing pins.
WARNING: The JP .308HP bolt does not allow for the use of excessive pressure, overloaded ammunition that exceeds SAAMI specifications. When evaluating new ammunition, always start on the low- to mid-range of any published load data and work up. A good indicator of working pressure is the primer retention on the subsequent loading of a case. A noticeable loss of primer pocket tension indicates that your ammunition has excessive pressure and has overworked the case.
Review by Richard W. on 22 Aug 2019review stating BP High Pressure Bolts
My nephew built me a AR 10 with a CMT upper&lower receiver with a 308 Win. & 6.5 Creedmoor uppers. The parts came from Rainier Arms, it has been amazing. The first bolt was a standard BCG from Rainier Arms, and had been abusing the brass pretty hard. Since changing to a JP HP bolt the brass looks like it was shot out of a bolt rifle minus ...Read MoreRead more about My nephew built me a AR 10 with a CMT
a slight ding in the neck. Highly recommend these bolts. Read LessRead less about My nephew built me a AR 10 with a CMT
Review by Steven E. on 27 Jun 2018review stating Not used yet
On first view it as all of my JP stuff is great . Fit , appearance and function with out being fired. As soon as I can afford my hand rails, I'll see how it shoots!! The bolt was placed in a psa carrier for a 6.5 creed build. I don't know if I can say later how it works . If I can I will. Have never had a problem with jp' s products . Yet? Hope th...Read MoreRead more about On first view it as all of my JP stuff
is will perform as my other products ! Thanks ste Read LessRead less about On first view it as all of my JP stuff
Review by Richard W. on 22 Aug 2019review stating BP High Pressure Bolts
My nephew built me a AR 10 with a CMT upper&lower receiver with a 308 Win. & 6.5 Creedmoor uppers. The parts came from Rainier Arms, it has been amazing. The first bolt was a standard BCG from Rainier Arms, and had been abusing the brass pretty hard. Since changing to a JP HP bolt the brass looks like it was shot out of a bolt rifle minus ...Read MoreRead more about My nephew built me a AR 10 with a CMT
a slight ding in the neck. Highly recommend these bolts. Read LessRead less about My nephew built me a AR 10 with a CMT
Review by Steven E. on 27 Jun 2018review stating Not used yet
On first view it as all of my JP stuff is great . Fit , appearance and function with out being fired. As soon as I can afford my hand rails, I'll see how it shoots!! The bolt was placed in a psa carrier for a 6.5 creed build. I don't know if I can say later how it works . If I can I will. Have never had a problem with jp' s products . Yet? Hope th...Read MoreRead more about On first view it as all of my JP stuff
is will perform as my other products ! Thanks ste Read LessRead less about On first view it as all of my JP stuff
