M1 Machining strives to create a user friendly shopping experience for custom AR10 / 308 builds. This is great place for a weapon enthusiast and a true “Do-It-Yourselfer” to get ideas and find the right parts to complete a rifle build as unique as its owner. M1 Machining manufactures the M1-80% AR10 Lower Receivers, and we have networked with various vendors to provide a complete solution for anyone to confidently complete an AR10 / 308 rifle. M1 Machining would like to thank you for your support and for giving us the opportunity to earn your business. Thanks again and have fun with your custom rifle build!