Home / Accessory-Silencer Accessories / SIG SAUER MUZZLE BRK CL 5.56MM 90 DEG View cart “Gemtech GM9 THREAD REAR MOUNT M18X1RH” 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! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 $8211 Sale! Dead Air Armament KEYMO FLASH HIDER M14X1LH $8900 $8472 Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Gemtech ADAPTER S&W M&P22C/22LR $6200