The SIG M400 Varminter is a new hunting rifle using the AR15/modern sporting rifle platform. Â Designed for precision, long range taking of varmints, this M400 is chambered in 5.56 and has a variety of options and features that will be appreciated by many hunters.
First off, the M400 Varminter uses a 22″ match grade, heavy barrel. Â The fluted barrel is stainless steel and has a 1:9″ twist, which is fine for stabilizing lighter weight bullets frequently used for varmints. Â While a 1:8″ twist is better for heavier bullets, it is literally fast enough to spin apart some lightweight, compressed metal bullets.