Allen Engineering AEM5 MK12 Suppressor, Knurled

Allen Engineering
Current Stock:

Allen Engineering AEM5 MK12 Suppressor, Knurled (AEM5-K)

Made by Allen Engineering in Sparks, NV.

The AEM5 is the direct fit replacement for your MK12 SPR. The AEM5 attaches to the weapon via a mount(not included) and a collar that goes over the barrel for alignment. The suppressor mounts via threads on the outside of the mount centering on the adapter fitting. A 20 degree taper on the adapter locks the silencer onto the barrel.

*This is the Knurled version, proper for the MK12 rifles

Caliber: 5.56
Length: 8 7/8"
Weight: 21oz
Finish: Cerakote High Temperature
Lifetime Warranty

How to Buy a Suppressor Online:

  • If you reside in the United States and are legally allowed to own a firearm you can legally purchase it online from
  • In compliance with U.S. federal law, firearms purchased through Operation Parts are shipped from us to a Federal Firearms Licensee (FFL) in your local area once we have validated your local FFL’s license and shipping location. Just contact your local dealer and have them email a copy of their signed FFL to us.
  • Once you have found a local dealer willing to do the final transfer for you simply place your order on our web site, using the dealer as the ship to address.
  • We ship all firearms via UPS or USPS only. We do not ship firearms or any other products outside of the United States.
  • Once your local FFL receives the firearm, they will contact you to arrange for you to come to their location to receive the firearm after all federal, state, and local requirements are met. Most dealers charge a fee for handling the final transfer.
  • If your FFL transferor determines that the firearm is not permitted in your local area after it has shipped or, for any reason, they cannot transfer the firearm to you, the FFL transferor will return the firearm to us and you will be issued a refund, minus shipping charges to/from your local dealer and restocking fee.