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Sig Sauer MCX PMM B.C.D. (Battery Control Device)



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​Due to ITAR restrictions, this item cannot be shipped outside of the U.S. International orders will be cancelled per our policy, less a 6% transaction fee.

Product Details

​Parker Mountain Machine is proud to bring a Battery control device to the market for the SIG MCX, VIRTUS & RATTLER.



Much like the Battery Devices found on AR-15 Weapon systems PMM’s B.C.D. Allows the shooter full control of the MCX,VIRTUS & RATTLER’s Bolt Carrier with minor movement of the trigger finger saving the shooter precious time during magazine changes and battery manipulation.


Additionally the B.C.D’s main paddle is larger with finer serrations for extra grip while engaging the Battery of the MCX rifle traditionally.


CNC’d in-house out of 6061 aluminum then hardcoated per military standards. The PMM B.C.D. is a low cost and effective way of improving the operating functions of your MCX rifle.


Product Features:


  • Finished in a 8625 type 3 class 2 industry standard hardcoat. In colors FDE or black
  • Mounting hardware and locktite included
  • Limited Lifetime Warranty.
  • Installation is simple and is done in minutes.
  • No permanent modifications to the rifle.
  • Light weight less than 1 oz with Hardware.
  • Does not contact any critical components of the MCX during articulation.


PMM SIG MCX® Legacy,Virtus & Rattler BCD installation video.


Download PDF pmm_mcx_bcd__instalation_instructions.pdf

Additional information

Weight N/A

Black, FDE

70 reviews for Sig Sauer MCX PMM B.C.D. (Battery Control Device)

  1. Chad A.

    Fantastic part…makes charging my MCX easy with my right hand.very well made.

  2. William S.

    Matches MCX perfectly works great. Jarod is a great asset to firearms community with his designs & customer service.

  3. Chris D.

    Works just like it should, a must if you have a BCD style device on other rifles. Like all PMM gear, it is well made and looks great.

  4. Thomas P.

    It is super easy to install. Extremely handy for right-handed shooters, a MUST for lefties.

  5. Ron R.

    Best bolt release for the MCX. Well thought out and sits as far forward as possible without hitting anything when used compared to all other bolt releases on the market. Liked it so much I ordered a 2nd and now have it on a Sig Virtus and Rattler.
    I wear a 3x-4x glove and does not get in the way.

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