Allen Engineering AEM5-30 (FDE). .30 caliber version of the AEM5 with the M24 (Ops Inc 3rd Model) baffle stack. Shorter overall length than the AEM5 with brake mount flexibility. Rated up to .300 Win Mag. 304 stainless steel construction with excellent thermal stability. Tapered mount provides repeatable bore alignment and reliable return to zero after removal. 7-10 turns for best fitment. Note: If this product is reflected as in-stock it means it's either physically in-stock or allocated and available (serial number is assigned) at my distributor