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Clip and Save! Special Coupon Discounts on Select Products
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- Color:
- Black
- Finish:
- QPQ Black
- Included Accessories:
- JP Enhanced Gas Ring
- Additional Features:
- Low Mass Bolt Carrier
Code: J5-ABA-JPLFC-JPBC-4
MPN: JPBC-4
UPC: 812872020587

- Color:
- Black
- Finish:
- QPQ Black
- Included Accessories:
- .308 Enhanced Bolt assembly, Cam Pin, Firing Pin, Firing pin retainer pin
- Additional Features:
- Full Mass Bolt Carrier
Code: J5-ABA-JPLFC-JPBC-5A
MPN: JPBC-5A
UPC: 812872023847

- Color:
- Silver
- Finish:
- Polished
- Included Accessories:
- JP Enhanced Gas Ring
- Additional Features:
- Low Mass Bolt Carrier
Code: J5-ABA-JPLFC-JPBC-4SP
MPN: JPBC-4SP
UPC: 812872020594
Product Info for JP Enterprises Bolt Carrier for Large Frame
If you’re looking for Bolt Carrier Groups, you have to check these out! Designed for large-frame AR platforms, you can choose from a Low Mass Bolt Carrier or Full Mass Bolt Carrier depending on your needs, or buy one of each to swap them out whenever you want! Check out the specs and features below to pick out the perfect JPBC for your next build or to improve your current large-frame AR!![]()
JP Enterprises combines technology and cutting-edge designs to bring serious and recreational shooters high-quality firearms products at an exceptional value. Unlike most companies, JP Enterprises offers products and services based directly on the experiences of professional shooting competitors, including founder John Paul. This company actually puts its products to the test in national-level competitions. Whatever your application of choice may be, JP Enterprises has the perfect parts and accessories to improve your shooting experience.
Specifications for JP Enterprises Bolt Carrier for Large Frame:
| Manufacturer: | JP Enterprises |
| Fabric/Material: | Stainless Steel |
| Caliber: | .308 Winchester |
| Gun Model: | AR-10 |
| Hand: | Right |
| Condition: | New |
| Projectile Caliber: | .308 Caliber |
| Gun Frame Size: | Large |
Features of JP Enterprises Bolt Carrier for Large Frame:
Full Mass Operating System
- 416 stainless steel Full Mass Operating System (FMOS™)
- Extended forward assist serrations
- Dust cover notch
- Longer Mil-spec. cocking pad
- Roller-burnished for frictionless operation
- QPQ (Quench-Polish-Quench)
- 100% increase in bearing surface
JP Low Mass Operating System
- Low Mass Operating System (LMOS™)
- Recommended only for competition & sporting use
- 100% increase in bearing surface
- Longer Mil-spec. cocking pad
Package Contents:
- JP Enterprises Bolt Carrier for Large Frame
- See specific models for included accessories
JP Enterprises Bolt Carrier for Large Frame Orderable Models
List of Orderable Models
- JP Enterprises Full Mass Bolt Carrier For Large Frame, .308, 416 Stainless w/QPQ and Jpegr-308 Enhanced Gas Ring, Black JPBC-5 , MPN: JPBC-5 , UPC: 812872023830 , Code: J5-ABA-JPLFC-JPBC-5
- JP Enterprises Stainless Steel Low Mass Bolt Carrier For Large Frame, .308 w/Enhanced Forward Assist Serrations, 416 Stainless w/QPQ, Black JPBC-4 , MPN: JPBC-4 , UPC: 812872020587 , Code: J5-ABA-JPLFC-JPBC-4
- JP Enterprises Full Mass Bolt Carrier, .308 w/JPEB-308 JP Enhanced Bolt w/Cam Pin, Firing Pin And Firing Pin Retainer, Black JPBC-5A , MPN: JPBC-5A , UPC: 812872023847 , Code: J5-ABA-JPLFC-JPBC-5A
- JP Enterprises Stainless Steel Low Mass Bolt Carrier For Large Frame, .308 w/Enhanced Forward Assist Serrations, 416 Stainless w/Special Polish, Stainless JPBC-4SP , MPN: JPBC-4SP , UPC: 812872020594 , Code: J5-ABA-JPLFC-JPBC-4SP