Flash suppressors are threaded 1/2"x28. For use on pre-ban firearms only. The Phantom design eliminates nearly all flash, but has closed end design for more strength and less snagging. A1 flash suppressor and Phantom require lockwasher; A2 flash suppressor requires peel washer.

Part # Price
F2B - specify A1 or A2 $12.00
Phantom flash $42.00
AR42 - lockwasher $1.00
Peel washer $2.00