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RROC Conversion 5.56mm Upper by ADD. Clean Runnin’, No Recoilin’, and Reliable.

by David Crane [email protected] DefRev (DefenseReview.com for any newbies out there) has known about the RROC Conversion for quite some time–about the last year and a half, long before it even had a name. RROC stands for Reduced Recoil Operation Control system, and it was invented/developed by Bob Davies out of Tempe, Arizona. Bob’s company is called Advanced Device Design ... Read More »