Sig Sauer M400 SDI 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

• Ambidextrous Bolt Catch and Release
• Low Profile Gas Block with Mid-Length System
• SIG Flatblade Match Trigger
• Hybrid Compensator/Flash Hider
• Magpul SL Stock

Product Description:

The M400 SDI X Series is the 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.