Skip to product information
1 of 1

PREORDER: OMEGA Valve Mod. 3 (308, 277)

PREORDER: OMEGA Valve Mod. 3 (308, 277)

Regular price $189.99 USD
Regular price Sale price $189.99 USD
Sale Sold out
Shipping calculated at checkout.
Finish

In stock

Quantity

Patent Pending

BE ADVISED: THIS IS FOR A PREORDER. PREORDERS WILL NOT BE CANCELLED UNDER ANY CIRCUMSTANCES. Please expect a six-eight week wait. Return to this page for production status updates.

For placing a preorder, you may choose either the standard Hex-L hBN coating by R/T Coating Solutions or FDE Cerakote by Emerald City Cerakote. Cerakote is a preorder exclusive.

03/01/26-03/07/26: PREORDER will be LIVE.

USPS Disclaimer: I am hereby advising you to choose UPS. Do not harass me if USPS is slow!

"Holy shit this feels like cheating." Music to my ears.

The OMEGA Valve Mod. 3 is the first tunable gas valve for the large frame Sig Sauer MCX SPEAR line of rifles. It is made from 17-4 stainless steel via additive DMLS manufacturing, and is coated in an advanced hexagonal boron nitride coating.

It does three things:

  1. It features a redesigned indexing lug that allows for four gas positions as opposed to the original two.
  2. It utilizes extended gas flow paths to delay entry of the gas into the expansion chamber of the Valve, slowing down the cycling of the rifle. Position 4 of the OMEGA Valve Mod. 3 features a large tapered gas port to help ensure unsuppressed functionality.
  3. It utilizes Parker Mountain Machine SCAR gas jet screws, allowing the user to vent excess gas out of the front of the OMEGA Valve. Also available are my own Micro Jet Screws to allow even finer tuning of your system!

When dialed in correctly, the OMEGA Valve will transform your experience with the Sig MCX SPEAR. You will experience a softer recoil impulse, a less severe at-ear sound signature (when shooting with a silencer), and marginally reduced exposure to toxic gas, regardless of what ammunition and silencer you choose to use. Please note that the OMEGA Valve was designed to tune suppressed performance. Satisfactory results may be possible in the unsuppressed state, but this was never the goal. Simply put: exceedingly under-powered ammunition may not function properly without the use of the silencer.

With your order, you will receive:

  • (1) OMEGA Valve Mod. 3
  • (1) Solid Set Screw (already installed)
  • (1) 2.5mm wrench

This model has been tested to work with Sig Sauer MCX SPEAR rifles in the following configurations:

    • 16" 7.62x51
    • 13" 7.62x51
    • 13" 6.8x51/277 Sig Fury
    • 16" 6.8x51/277 Sig Fury

It stands to reason that the OMEGA Valve Mod. 3 is compatible with the 6.5 Creedmoor rifles that are owned by like five people on Earth.

Compatibility with any upcoming reconfigurations of the M7 system remains to be seen.

Disclaimer: Sig Sauer® and MCX® are trademarks of Sig Sauer, Inc. J. Bennett Designs, LLC is not affiliated with or endorsed by Sig Sauer, Inc. OMEGA Valve is an independent product compatible with the Sig Sauer® MCX® platform.

We have data available to be viewed here

View full details

Export Compliance Notice: Export of this product is controlled under the U.S. Department of Commerce, Bureau of Industry and Security (BIS), pursuant to the Export Administration Regulations (EAR), Title 15, C.F.R., Parts 730–774. J. Bennett Designs, LLC does not authorize any dealer, distributor, or other third party to export this commodity without prior written authorization. Warranty service and post-sales support will not be provided for unauthorized international exports.