Shop › CMMG COMPENSATOR A2 1/2X28 CMMG COMPENSATOR A2 1/2X28 $10.95 CMMG A2 Compensator, 1/2 x 28 RH, Black Finish 55DA5EB Quantity: Add To Cart Added! CMMG A2 Compensator, 1/2 x 28 RH, Black Finish 55DA5EB