Special attention was given to incorporate smooth transitions throughout the rifle, giving it a feel of confidence and reliability. Weight reduction was made without compromising strength and integrity. The barrel weight savings alone can be up to 64%. All of this innovation is backed up with a life-time limited warranty. All of our weapon systems are 100% American made at our factory in the State of Montana.
- Ambi SI-D AR15 7075-T6 Billet Lower Hard Black Anodized
- Ambi SI-D AR15 7075-T6 Billet Upper Hard Black Anodized
- Ambidextrous Mirrored Controls-Billet Machined Bolt/Mag Release
- Ambidextrous Take Down Pins
- Quick Snap Dust Cover
- Forward Assist
- Flared Magwell
- Integrated Trigger Guard
- Barrel: Military Approved Carbon Fiber Wrapped 16”
- Switch Free Float Rail Key-mod
- BCG: SI-D High Pressure Black Nitride Coated
- CMC Trigger: Single Stage 3.5 lbs Flat
- Mission First Tactical Stock - Minimalist
- Charging Handle: Falkor Ambi Charging Handle
- Battle Arms Development Selector - 50 degree Short Throw (STD/STD)
- Muzzle Break: VG6 Epsilon Brake
- Patriot Case - Custom Foam cutout Included
Carbon Fiber Barrel:
These match-grade carbon fiber wrapped barrels were specifically designed and engineered for SI-Defense. These barrels aren’t just a light weight alternative to traditional steel barrels. These barrels provide superior performance, extreme accuracy, unprecedented durability, and increased barrel life. Reduced harmonic barrel vibration, improved heat dissipation, and no point-of-impact shift during high volume fire, is why SI-D put these barrels on its weapon platforms. They’re not just lighter-they’re better! Every barrel and weapon sold at SI-D is tested and proven before it leaves our factory.
FFL Required Before Shipping.
Please have your dealer email their license to FFL@rainierarms.com or they can also fax it in. Please give us a few days to process the information.