Hunting & Archery Equipment › jp enterprises vmos variable mass

J P Enterprises 308 Ar Low Mass Bolt Carrier Group - Jpbc-4ba Low-Mass Bolt/Carrier

Reduced-weight bolt/carrier assembly helps tame felt recoil on a JP or DPMS or Remington AR-style .308 rifle (LR-308 pattern only). Carrier features the same type of weight-reducing cuts found on the original JPBC-3 AR-15 bolt carrier to give the same... more

J P Enterprises Ar-15 5.56 Low Mass Complete Bolt Carrier Groups - Jpbc-3a Low-Mass Bolt & Carrier

Precision-machined, stainless bolt-and-carrier group features JP's enhanced bolt made of high-grade 9310 steel for a significantly longer life expectancy than standard mil-spec bolts. Set is available with choice of JPBC-2A Low Mass carriers that... more

J P Enterprises 308 Ar Low Mass Bolt Carriers - Jp .308 Low Mass Special Polish Stainless Carrier Wi

Reduced-weight bolt/carrier assembly helps tame felt recoil on a JP or DPMS or Remington AR-style .308 rifle (LR-308 pattern only). Carrier features the same type of weight-reducing cuts found on the original JPBC-3 AR-15 bolt carrier to give the same... more

JP Enterprises Stainless full mass tactical carrier with QPQ without buffer for 6.5 Grendel Black JPBC-2A 6.5G

JP Enterprises Stainless full mass tactical carrier with QPQ without buffer for 6.5 Grendel Black JPBC-2A 6.5G. The exterior bearing surfaces are hand polished. Features a 100percent increase in bearing surface for smoother operation and improved... more

JP Enterprises VMOS Bolt Carrier Heavy Version Black JPBC-7H2

JP Enterprises VMOS Bolt Carrier Heavy Version Black JPBC-7H2. Made from stainless steel with a striking black finish this heavy-duty bolt carrier group can help eliminate any cycling problems you might have in your rifle. It is tested rigorously to... more

JP Enterprises Complete Bolt Carrier Assembly With Jpbc-7 Large Frame Variable Mass Carrier Jpeb-308 Jp Enhanced Bolt Jp Enhanced Cam Pin Black

JP Enterprises Complete Bolt Carrier Assembly With Jpbc-7 Large Frame Variable Mass Carrier Jpeb-308 Jp Enhanced Bolt Jp Enhanced Cam Pin Black. Will Also Work In Dpms Lr-308 And Will Only Work With Armalite If Used As A Complete Bolt Carrier Group BCG... more

JP Enterprises VMOS Bolt Carrier Standard Version Black JPBC-7

JP Enterprises VMOS Bolt Carrier Standard Version Black JPBC-7. Made from stainless steel with a striking black finish this heavy-duty bolt carrier group can help eliminate any cycling problems you might have in your rifle. It is tested rigorously to... more

JP Enterprises Small Frame Variable Mass Bolt Carrier Group BCG With Jpeb-6.5G Enhanced Bolt Black JPBC-6HA-6.5G

JP Enterprises Small Frame Variable Mass Bolt Carrier Group BCG With Jpeb-6.5G Enhanced Bolt Black JPBC-6HA-6.5G. 223/5.56 Bolt Jpcp-223 Enhanced Cam Pin Jpfprp-223 Enhanced Firing Pin Retaining Pin. For difficult setups like suppressed rifles and... more

J P Enterprises Silent Captured Spring Tungsten Weight Gen 2

Designed to replace one or more of the existing weights of the JP Silent Captured Spring, these tungsten weights are heavier than the standard components to allow for more reciprocating mass in the operating system. For use in the Gen 2 systems only.... more

JP Enterprises Gen 2 Silent Capture Spring System 9mm Short Stroke 3 Steel/ 2 Tungsten Masses Black/Silver JPSCS2-9SS-5H2

JP Enterprises Gen 2 Silent Capture Spring System 9mm Short Stroke 3 Steel/ 2 Tungsten Masses Black/Silver JPSCS2-9SS-5H2. These AR15 Lower Parts made by JP Enterprises reduce vibration and eliminate the need for a buffer but still allow the bolt to... more

JP Enterprises Stainless Steel Low Mass Bolt Carrier For Large Frame .308 w/Enhanced Forward Assist Serrations 416 Stainless w/QPQ Black JPBC-4

JP Enterprises Stainless Steel Low Mass Bolt Carrier For Large Frame .308 w/Enhanced Forward Assist Serrations 416 Stainless w/QPQ Black JPBC-4. Designed for large-frame AR platforms you can choose from a Low Mass Bolt Carrier or Full Mass Bolt Carrier... more

JP Enterprises Gen 2 Silent Capture Spring System 9mm Short Stroke 5 Steel Masses Black/Silver JPSCS2-9SS-5

JP Enterprises Gen 2 Silent Capture Spring System 9mm Short Stroke 5 Steel Masses Black/Silver JPSCS2-9SS-5. These AR15 Lower Parts made by JP Enterprises reduce vibration and eliminate the need for a buffer but still allow the bolt to cycle freely.... more

JP Enterprises Aluminum Ultra Low Mass Carrier For Small Frame .223 w/Jpfr-223T Titanium Firing Pin/Jpgr-223 Gas Ring Green JPBC-1

JP Enterprises Aluminum Ultra Low Mass Carrier For Small Frame .223 w/Jpfr-223T Titanium Firing Pin/Jpgr-223 Gas Ring Green JPBC-1. The JPBC-1 yields a performance advantage for competition applications at a price. Your usage and maintenance will... more

JP Enterprises EnhancedBolt Bolt Carrier Group BCG 9mm QPQ Finish Standard Stroke Enhanced SCS System JPSCS2-9-5H2 - 2 Tungsten/ 3 Steel Masses Black

JP Enterprises EnhancedBolt Bolt Carrier Group BCG 9mm QPQ Finish Standard Stroke Enhanced SCS System JPSCS2-9-5H2 - 2 Tungsten/ 3 Steel Masses Black. These Bolt Carrier Groups by JP Enterprises have a reduced stroke length which results in a faster... more

JP Enterprises Stainless full mass tactical carrier with QPQ without buffer Black JPBC-2

JP Enterprises Stainless full mass tactical carrier with QPQ without buffer Black JPBC-2. JP Enterprises JPBC-2: Stainless full mass tactical carrier with QPQ (without buffer) Black Specifications for JP Enterprises Stainless Full Mass FMOS Bolt... more

JP Enterprises EnhancedBolt Bolt Carrier Group BCG 9mm QPQ Finish Short Stroke Heavy SCS System JPSCS2-9SS-5H2 - 2 Tungsten/ 3 Steel Masses Black

JP Enterprises EnhancedBolt Bolt Carrier Group BCG 9mm QPQ Finish Short Stroke Heavy SCS System JPSCS2-9SS-5H2 - 2 Tungsten/ 3 Steel Masses Black. New to this revision of our JPBC-9SL and JPBC-9SL-SP bolt assemblies is last round holt open... more

JP Enterprises Bolt Carrier Assembly Large Frame Variable Mass Carrier Black JPBC-7AH2

JP Enterprises Bolt Carrier Assembly Large Frame Variable Mass Carrier Black JPBC-7AH2. This is especially true in the absence of an adjustable gas block. Residual gas and excessive fouling can grind your rifle to a stop. One size never fits all when... more

JP Enterprises Full Mass Bolt Carrier For Large Frame .308 416 Stainless w/QPQ and Jpegr-308 Enhanced Gas Ring Black JPBC-5

JP Enterprises Full Mass Bolt Carrier For Large Frame .308 416 Stainless w/QPQ and Jpegr-308 Enhanced Gas Ring Black JPBC-5. Designed for large-frame AR platforms you can choose from a Low Mass Bolt Carrier or Full Mass Bolt Carrier depending on your... more

JP Enterprises Stainless Steel Low Mass Bolt Carrier For Large Frame .308 w/Enhanced Forward Assist Serrations 416 Stainless w/Special Polish

JP Enterprises Stainless Steel Low Mass Bolt Carrier For Large Frame .308 w/Enhanced Forward Assist Serrations 416 Stainless w/Special Polish. Designed for large-frame AR platforms you can choose from a Low Mass Bolt Carrier or Full Mass Bolt Carrier... more

J P Enterprises Ar-15 Stainless Steel Low Mass Bolt Carrier - Jp Low Mass Polished Stainless Carrier

Custom, stainless steel bolt carrier features a 100% increase in bearing surface for smooth cycling and outstanding reliability. Includes the dust cover notch for tactical duty or any application requiring absolute "no-fail" operation. Expanded,... more

J P Enterprises Ar.308 Full Mass Operating System Complete Carrier Group - Fmos .308 Enhanced High P

JP's full mass .308 carrier is designed to provide greater reliability in suppressed setups as well as SBRs and rifles without an adjustable gas system. Heavier than a standard DPMS LR-308 carrier, the JPBC-5 allows for the additional cycling delay... more

J P Enterprises Ar .308 Low Mass Operating System Complete Carrier Group - Lmos .308 Enhanced Bcg Qp

A low mass carrier provides the most significant improvement to felt recoil after the addition of a compensator. JP's LMOS carriers remove much of the reciprocating mass out of the rifle's cycling. This translates into less felt recoil and less... more

J P Enterprises 223/308 Tungsten Weight - Ar-15/M16/Ar-308 Tungsten Weight

Designed to replace one or more of the existing weights of the JP Silent Captured Spring, these tungsten weights are heavier than the standard components to allow for more reciprocating mass in the operating system. Compatible with any Gen 1 JP Silent... more

J P Enterprises 9mm Carbine Bolt Carrier Group Short Stroke Compatible - 9mm Carbine Bcg Short Strok

Machined to the same exacting tolerances as JP's bolt carriers, this third generation 9mm bolt assembly eliminates the need for a central mass (slug) to readily function with their 9mm JP Silent Captured Spring without compromising bolt weight and... more