Home / Accessory-Silencer Accessories / SIG SAUER MUZZLE BRK CL 5.56MM 90 DEG View cart “Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24” has been added to your cart. Sale! SIG SAUER MUZZLE BRK CL 5.56MM 90 DEG$17999 $16957 Out of stock SKU: SL-556-12X28-90DEG-M Category: Accessory-Silencer Accessories Product ID: 42666 Description Description Mzzle Bke Assem SLX/SLH Series90 Degree Shoulder Related products Sale! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24 $8500 $7561 Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715