Never be caught unprepared during a critical moment on the range or in competition. Whether facing a dropped magazine, feeding issue, or simply needing an extra round or two when it matters most, the MDT M-LOK multi-caliber spare round holder ensures quick and easy access to additional ammunition. Designed to securely store two extra rounds on the side of your rifle, this innovative solution keeps backup rounds within reach for faster reloads and uninterrupted performance. Built for versatility, it seamlessly integrates with M-LOK mounting systems, making it a must-have for shooters who demand efficiency and reliability in every scenario. The product offers a wide range of round compatibility, including .223, .300 AAC Blackout, .224 Valkyrie, 7.62x39mm, 6.5 Grendel, .308 Win, 6.5 Creedmoor, .450 Bushmaster, 7mm, 300 Win Mag, .300 PRC, 6.5 PRC and more, making it versatile for different firearms The package includes a small and large caliber polymer body with an adjustable spacer system for maximum compatibility with various firearms Spacer system uses Mil-Spec washers and O-rings to offer the perfect fit, ensuring proper alignment and a secure fit for enhanced performance The device can be mounted using M-LOK or the accessory holes on the side of the ACC chassis, offering flexibility in attachment options Reversible design allows for mounting on the left or right side of the chassis, providing adaptability based on user preference and shooting stance Staggered design providing greater clearance around ejection port, offering a design that allows for easier cycling of rounds and better functioning The glass-filled polypropylene polymer body is lightweight yet durable, providing excellent strength and resistance to wear, ensuring long lasting use even in tough environments