Sons of Liberty Gun Works is a manufacturer of High Quality Lifetime Warrantied M4s and AR-10s. We use only the best components, meeting or exceeding Military Specifications on every part. Every gun we build is designed to be used and be used hard, combat, overseas security, domestic security, competition or hunting in the worst climates. We build them tough just like the people who use them. No need to feed it match ammunition, or baby it. It will run with any ammo you can find if order breaks down and only needs a basic level of care to keep functioning. Just keep it fed and lubed.