This is a sale for a Used SIG SAUER MCX TacOps 300BLK – 6.75” SBR rifle, SD HandGuard-ready. This is the setup serious shooters and clone builders chase.
Built around the ultra-compact 6.75” barrel, this TacOps was designed from the ground up for suppressed performance. The SD handguard-ready configuration gives you that clean, tucked look with optimal gas system tuning—making it one of the smoothest-shooting .300 Blackout platforms when paired with your favorite can.
This isn’t just another MCX—this is close LVAW clone territory. The proportions, the profile, the purpose-built design… it checks all the boxes for anyone looking to build out a proper low-vis setup.
Condition: Used, but well-maintained and solid
Caliber: .300 Blackout
Barrel: 6.75” SBR
Configuration: SD-HandGuard ready for suppressor use
Platform: Proven MCX reliability with a short-stroke piston system
Whether you're running subs for ultra-quiet performance or dialing in a high-end clone build, this TacOps delivers where it matters—compact, reliable, and built to run suppressed as it was meant to.
Hard to find in this configuration and even harder to let go. Don’t miss your shot.
DISCLAIMER:
This is a NFA item and all federal and state laws apply. It must be shipped to buyer's FFL/SOT, which transfer involves no ATF fees. The transfer to buyer's FFL/SOT will be done after payment in full. Refunds will NOT be given due to poor performance by ATF. Buyers of NFA items should be aware that ATF approval is out of our control and that no NFA item can be shipped until the ATF approves the transfer of the item.
