The Raptor Adapter is a thread conversion piece which takes the proprietary base-end TPI of the Raptor series, and converts it to the "industry standard" 1.375 x 24 TPI.
AB SUPPRESSOR MUZZLE THREAD ADAPTER 1/2-28 TO 5/8-24
AB SUPPRESSOR MUZZLE THREAD ADAPTER 9/16-24
LBE UNLIMITED AR15 CARBINE LENGTH GAS TUBE W/ PIN
B5 SYSTEMS CAR15 HANDGUARD, CARBINE LENGTH, BLACK
