Product Overview
- Short-barreled .300 AAC Blackout AR-format pistol built on an adjustable short-stroke piston platform.
- Cold hammer-forged 6" barrel with 1:5 twist and a SIG QD suppressor-ready flash hider with 5/8"-24 tapered-shoulder threads.
- Includes one 30-round polymer magazine.
- Must ship to a Federal Firearms License (FFL) holder.
Overview
The Sig Sauer MCX Rattler LT in .300 AAC Blackout is a semi-automatic AR-format pistol with a 6" cold hammer-forged steel barrel and an FDE anodized alloy receiver. Weighing 5.1 lbs, it uses an adjustable short-stroke piston gas system and features an AR-compatible PDW brace configuration. The M-LOK/Picatinny handguard and full-length Picatinny top rail support accessory mounting.
Key Features
- .300 AAC Blackout chambering, 30+1 capacity, 6" cold hammer-forged steel barrel.
- Adjustable short-stroke piston gas system reduces felt impulse and carbon buildup in the action.
- 1:5 twist rate optimized for .300 BLK projectile weights.
- SIG QD suppressor-ready flash hider with 5/8"-24 tapered-shoulder threads for suppressor attachment.
- FDE anodized alloy receiver with M-LOK/Picatinny handguard and full-length Picatinny top rail.
- SIG Flat Blade Match trigger and ambidextrous manual safety.
- AR-compatible PDW brace stock configuration.
What's In The Box
- Sig Sauer MCX Rattler LT pistol
- (1) 30-round polymer magazine
FFL & Compliance
This firearm must be shipped to a Federal Firearms License (FFL) holder. The buyer is responsible for knowing and complying with all applicable local, state, and federal laws. Magnum Ballistics does not provide legal advice or determine purchase eligibility. We ship only to the FFL selected during checkout.