The Si-D Ambi 308 rifle was engineered and designed to incorporate innovation everywhere possible (with several patent pending technologies) emphasizing accuracy, reliability, and dependability. SI Defense has partnered with Proof Research to introduce a carbon fiber barrel option that is specifically designed and engineered for the SI-D Ambi Battle Rifle that defines MOA. SI Defense is an engineering, aerospace and firearm manufacture that is well known for its innovation and high quality firearms. …read more
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