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J P ENTERPRISES HIGH PRESSURE LARGE FRAME 308 ENHANCED BOLT CARRIER PIN PACKAGE

High Pressure Lg Frame 308 Enhanced Bolt Carrier Pin Package
Brownells #
430109831
MFR #
JPBC-PINS-308HP
UPC
812872026350
$53.15
Coupon Code
Purchase Limit Help

In stock

Specifications
Action Length:
Short
Make Model Fit:
AR-15.Universal
Cartridge:
308 Winchester
Color:
Black
Finish:
QPQ
Material:
Steel
Quantity:
1
Restriction
Prop 65 restriction:
WARNING: Cancer and Reproductive Harm www.p65warnings.ca.gov
Description
Reduced the wear, increase the lifespan.
When it comes to ARs, the smaller the part, the less people think about it. But that doesn't mean there's not room for improvement almost everywhere you look. Both in design and manufacturing, there are always gains to be made.
This bolt carrier pin package includes JP’s Enhanced Cam Pin, Firing Pin, and Firing Pin Retainer Pin. Each has undergone a design revision the retains every critical Mil-spec dimension while improving durability, finish and function. These pins are the standard components for all of our custom rifle and upper builds.
More on the High Pressure .308 ENHANCED FIRING PIN:
Compatible with the JPEB-308HP, JPBC-EB308HP and any rifle equipped with JP’s High Pressure Enhanced Bolt™.
WARNING: This firing pin is compatible only with the JP High Pressure Enhanced Bolt™ assemblies and should not be used with any other bolt assembly.
More about the ENHANCED CAM PIN:
The JP Enhanced Cam Pin retains every critical dimension of the standard DPMS LR-308 cam pin but improves on design, manufacturing and finish. A smoother operating system with lower overall wear in the components is the result.
In addition to receiving their low-friction QPQ finish, these Enhanced Cam Pins are also machined thicker than the usual undersized dimension of standard pins. An undersized pin drops right in but allows slop in the relationship between bolt, bolt carrier and cam pin. Looseness in these parts stresses the cam pin hole of the bolt during cycling, which is why bolt breakage is so common at this point. It also wears the cam pin faster as the carrier wears into the material at the bearing points. A tighter pin with low-friction coating cuts all this wear down dramatically.
Finally, JP holds the upper receiver-to-cam pin width precisely to keep the bolt in alignment with the barrel. This reduces premature lug wear to the barrel extension.
The revamped head design of this pin also allows for easier assembly/disassembly while also cutting out the typical sloppy play that causes needless receiver wear.
Features:
  • Tighter dimensional tolerances for reduced bolt assembly and cam pin wear
  • Redesigned head for easier disassembly and more controlled fit
  • Elimination of sharp edges dramatically reduced wear to the upper receiver
  • Smoother operation thanks to additional polishing to all critical surfaces
  • Rock-hard QPQ coating for corrosion resistance and lubricious cycling
  • LR-308 compatible requiring no additional proprietary parts
More about the ENHANCED FIRING PIN RETAINER PIN:
Easily lost, the standard split-pin design firing pin retainer pin is haunted by poor retention. For decent function, the user must regularly spread apart the pin's split tip. Without this, these pins are prone to falling out whenever the carrier group is removed from the rifle. Typically, such pins are either lost or fracture from regular spreading.
This JP-designed and manufactured firing pin retainer pin resolves all retention issues of the standard split-pin component. The cotter-style design offers superior retention and longevity. Its overall length is optimized for JP bolt carriers but is a perfectly functional replacement for the pins in all large-frame bolt carriers of the DPMS LR-308 pattern.
Features:
  • Quality JP design and demanding manufacture
  • Superior retention compared to standard DPMS split pin parts
  • Eliminated risk of casual component loss due to loose fit
  • Increased longevity over split-pin design
Compatibility: This firing pin retainer pin is not compatible with Armalite bolt carriers.

Prop 65WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

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