JP Enterprises VMOS™ Large Frame Bolt Carrier – .308 / AR-10 – QPQ Finish

Designed For Additional Reciprocating Mass On 308 Platforms That Enhances Tunability

The JP Enterprises VMOS™ Large Frame Bolt Carrier is designed to add reciprocating mass on .308 platforms which not only ensures reliability but also provides more custom tunability of the rifle’s operating system.

This carrier s is ideal for difficult setups like suppressed rifles and exotic caliber chamberings to add some degree of mass regulation for optimal performance.

Overcome Excessive Fouling & Residual Gas Build-Up

The JP Enterprises VMOS™ Large Frame Bolt Carrier is designed to overcome the excessive fouling and residual gas build-up that can result in your rifle to stop especially in the absence of an adjustable gas block.

Combined with the Silent Captured Spring, the VMOS offers multiple exchangeable masses to perfectly tune your operating system weight for optimal performance.

This standard version of the large-frame VMOS™ carrier includes three steel weights, two of which can be exchanged for heavier tungsten weights.

NOTES:

• For a complete operating system, this carrier pairs best with the JPSCS2-10H2.
• The package includes a carrier, JP Enhanced Gas Ring, and an instruction sheet.
• Requires DPMS-pattern bolt, firing pin, and cam pin.

Features:

• Enhanced tunability of operating system
• Guaranteed reliability of difficult configurations
• Overcomes all fouling build-up
• Roller-burnished bore for frictionless operation
• Rock-hard QPQ finish provides remarkable natural lubricity
• Extremely smooth cycling with proper lubrication
• Increased bearing surfaces for slower wear and longer component life
• Longer cocking pad for optimal reliability

Compatibility:

• The large-frame VMOS™ carrier uses the same steel and tungsten weights as GEN 2 Silent Captured Spring units. Only the forward two masses are reconfigurable. The rear-most steel mass cannot be exchanged.
• This carrier will not cycle with a standard buffer retainer plunger installed. Standard buffer/spring components must be installed “loose” or replaced with a Silent Captured Spring.
• This notice pertains to any rifle based on the large-format AR-10-type or LR-308 platform typically chambered in .308 Winchester, 7.62×51 NATO, or other cartridges requiring the longer magazine format.
• Be aware that these receiver platforms are not standardized like the AR-15/M16 platform for which most parts are cross-compatible. Before ordering accessories and parts for your large-format rifle, make sure the parts are compatible with your particular platform. This bolt carrier is compatible only with the DPMS family of AR-10 products.
• With the Armalite/Rock River family of large-frame receivers, this carrier can only be used as a complete bolt carrier assembly group with a DPMS-pattern bolt such as our .308 JP EnhancedBolt. Interchanging individual components will result in an unsafe configuration. Do Not under any circumstances mix and match components between the platforms.

Specifications:

• Model: Standard Version
• Platform: AR-308/AR10
• Carrier Style: Variable Mass Bolt Carrier
• Profile: Large-Frame (.308)
• Material: Stainless Steel
• Finish: QPQ Black Finish
• Weight: 14.40 oz. (as configured)

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

JP Enterprises Warranty

Defective or Incorrect Merchandise

• If you received incorrect or defective merchandise, please contact us to discuss the problem, and we will issue a UPS pickup for the merchandise.
• We will reship any replacement items at our expense or refund you in full for incorrect or defective merchandise you have received.
• If something is not what you expected, let us know and we’ll do everything possible to satisfy you.
• Please include a copy of your sales receipt. Do not send returns back COD.

Contact Details:

• Telephone: 651-426-9196
• Email: service@jprifles.com

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.