The thickness of the Armscorp receiver rail is aprox 3/8" where the Springfield is aprox 1/4". The 1/8" difference is about the same as the thickness of the middle section of the connector arm.
""thick enough that he has to modify his dummy kit "" I don't provide this modification unless requested for a nominal charge. Thanks, Hawk
""thick enough that he has to modify his dummy kit "" I don't provide this modification unless requested for a nominal charge. Thanks, Hawk