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Dave Grimshaw, Rifle Product Manager for SIG Sauer, talks about the company’s SIG M400, at the 2011 NRA Annual Meetings and Exhibits in Pittsburgh.

The M400 is a direct gas impingement AR-style gun that Sig states uses many of the features from the Sig 516. (the 516 is a piston gun). The M400 uses a M-4 style stock, an A-2 style pistol grip and has a removable carry handle.  The chrome-lined barrel has a 1:7 twist. For additional information on SIG Sauer, please visit the website at Sigsauer.com.

Hat tip to gunsforsale.com.

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Dave Grimshaw, Rifle Product Manager for SIG Sauer, talks about the company's SIG M400, at…