F4 Defense

F4 Defense, based in Lexington Park, MD, is a leading manufacturer of high-quality precision rifles and firearm components for military, law enforcement, and civilian markets. With a commitment to innovation and engineering excellence, F4 Defense designs small arms that push the boundaries of performance and reliability. Their product range includes rifles, receivers, parts, barrels, rail systems, charging handles, BCGs, optics, and gear, all crafted with American pride and backed by a strong reputation for quality and accuracy. F4 Defense stands out in the industry for their SF-10 Small Frame AR10, a true small-frame AR-10 rifle chambered in various competition and hunting calibers. With the only SUB 1 2 MOA Guarantee in the market, F4 Defense offers a wide range of cartridges in an AR-10 Small Frame platform, ensuring exceptional precision and performance. Their Adaptive Rail System, made from extruded 6061 T6 aluminum, provides functionality and compatibility with M-LOK and M1913 Picatinny accessories without the need for rail adapters. With a focus on American craftsmanship and cutting-edge technology, F4 Defense continues to deliver top-notch firearms and components to meet the needs of discerning shooters.

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