My Crusader came in today from GA Precision. the gun looks good but one thing has me concerned. The Thruster brake that i have on another GAP rifle has 3 ports per side. The brake on this rifle has 2 ports per side. What gives? the pics on badgers site still have the thruster with 6 total ports. The pics on GAP's web site have 6 total ports. Why does mine have 4?