Shop › KAK RETRO AR EXT FLSH HDR 4" 1/2X28 KAK RETRO AR EXT FLSH HDR 4" 1/2X28 $28.49 KAK Industry Retro Extended Flash Hider, 556NATO, Fits AR-15, 1/2x28, 4" Long, Phosphate Finish, Black AR15-XM177-FH-001 Quantity: Add To Cart Added! KAK Industry Retro Extended Flash Hider, 556NATO, Fits AR-15, 1/2x28, 4" Long, Phosphate Finish, Black AR15-XM177-FH-001