The AEM3 (OPS INC 15th Model) was originally designed for CanSOF C8 CQB and SFW rifles. It has a shorter mounting length (B-Mount) at 2.05" allowing it to fit on tighter barrels. Its has a shorter added length then most Allen Engineering suppressors, such as the AEM5 on the Mk12. This allows the AEM3 to shine on shorter CQB rifles since it keeps the overall package relatively short.
