Another Option to Fine-Tune Your AR from JP

AR platform rifles should be able to eat anything and keep on kicking. Unfortunately, experienced shooters know that’s not the case. Finely tuning your AR will keep it running, lower the overall wear, and make your shooting experience more enjoyable.

JP Enterprises just released their .308 Variable Mass Operating System (VMOS). This bolt carrier allows for another way to adjust the operating system of your gun. There’s more than one way to skin a cat, and for those of use who enjoy playing gun-barbies this bolt carrier seems like it might be a great option.

Here’s the lowdown from JP Enterprises:

Hugo, MN – JP Enterprises introduces their Variable Mass Operating System (VMOS™) enabling mass tunability and improved buffering of AR rifles. Operating systems can be easily tuned for a much wider range of applications such as suppressed rifles or exotic calibers.

“There’s no such thing as “one size fits all” in AR operating systems,” states JP founder John Paul. “Tuning your rifle is the only way to realize its potential and provide the performance you want. That’s why we pioneered the adjustable gas block concept more than two decades ago. Tuning can be the difference between reliable function and reliable frustration.”

Suppressed rifles or exotic calibers can experience excess gas and higher fouling that can easily push AR rifles outside their operational window. Using the same weights as JP’s Silent Captured Springs, the Variable Mass Operating System (VMOS™) enables mass tunability and improved buffering capacity. The VMOS™ provides additional reciprocating mass that ensures reliable function in even difficult-to-run rifles.

Like JP’s other carriers, the VMOS™ models feature a 100% increase in bearing surface for smoother operation, improved alignment and lower wear. The longer cocking pad also contributes to optimal reliability. Exterior bearing surfaces are polished before the carrier then undergoes a state-of-the-art, multi-vendor QPQ (Quench-Polish-Quench) process. The final result is a rock-hard surface with remarkable natural lubricity for a ball bearing smooth function with proper lubrication.

Read more on the advantages of the VMOS™, especially for suppressed rifles by clicking *here*

The VMOS™ is currently available for large frame (.308) AR-type rifles starting at $319.95. Expect to see a small frame (.223) version early in 2017.

To learn more about JP Enterprises, check them out online at http://www.jprifles.com

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