The SIG M400 is a popular AR-15 rifle (and one of our favorites) that is known for its accuracy, reliability, and value. It is a great choice for both beginners and experienced shooters. The SIG Sauer M400-SDI XSeries is one of the latest iterations of Sig’s line of AR-style rifles. Utilizing some advancements and upgrades… Continue reading SIG M400 Review: A Duty-Grade AR That Won’t Break the Bank