Last night, Strike Industries unveiled their new SI 2017 Pistol/Rifle which is created by combining this aluminum upper receiver with an MP5 Trigger Group and barrel.  In case you’re wondering about the stock, it’s from a SIG MPX as they’ve incorporated the MIL STD 1913 rail to the rear of the receiver.   It’s an … Continue reading Strike Industries Announces SI 2017 Pistol/Rifle, Based On MP5