McFadden #2 - AR1522 Conversion Adaptor
AR 15/.22 Conversion, CMMG, Sig Sauer 522, Kel-Tec PLR22 &SU-22, Black Dog, Bushmaster .22 Carbon 15 (ar 15 Style), Stag Arms 22 Conversion, & Kriss Defiance DMK22 22lr, Fostech .22, 2A Armament magazine Adapter Only
