The M400 X Series is out of the box performance solution. The X Series features a 16′” chrome molly barrel with a free-floating M-LOK handguard'” SIG Flatblade Match Trigger'” ambidextrous bolt catch and release'” Magpul SL stock'” and mid-length gas system.
Sig Sauer M400, XSERIES, Semi-automatic Rifle, AR, 223 Remington/556NATO, 16″ Carbon Steel Barrel, Anodized Finish, Black, Magpul SL Stock, SIG Flatblade Match Trigger Low Profile Gas Block With Mid-Length System, 30 Rounds, 1 Magazine RM400-SDI-16B-P
