Shop › AERO VG6 PRECISION GAMMA 556 SL AERO VG6 PRECISION GAMMA 556 SL $80.99 Aero Precision Gamma 556 SL, Muzzle Brake, 223 Rem/556NATO, Black, 1/2X28 APVG100038A Quantity: Add To Cart Added! Aero Precision Gamma 556 SL, Muzzle Brake, 223 Rem/556NATO, Black, 1/2X28 APVG100038A