Thunder Beast: MAGNUS-S, Reduced Recoil, SR, .338 Cal Suppressor

Thunder Beast
When purchasing an item on pre-order, do not add additional products to the cart. Any additional items will not ship until the entire order can be fulfilled.
Current Stock:
Adding to cart… The item has been added

 When purchasing an item on pre-order, do not add additional products to the cart. Any additional items will not ship until the entire order can be fulfilled. 

The Magnus-S-RR (Reduced Recoil version) has the most recoil reduction (on 300WM) of the RR models, by about 2%, because it hits the sweet spot of gas pressure at the RR brake ports.

When shooting 300 Winchester Magnum, the Reduced Recoil (also know as Race Ready) offers over 60% recoil reduction when compared to a bare muzzle. For comparison, a normal MAGNUS-CB suppressor with a flat endcap only has a 29% reduction on a 300 Winchester Magnum.


Best-for: Long-range shooting, Hunting, PRS

The Magnus-S is the shorter version of the Magnus and gives up little suppression while being over 2" shorter. Supression is between an Ultra 7 (Gen2) or Dominus-CB and the Ultra 9 (Gen2).



  • Caliber: .338 Caliber
  • Material: Titanium
  • Length: 9.1 inches
  • Diameter: 1.85 inches
  • Weight: 16.7 ounces
  • Mount: SR
  • Finish: High-Temp CeraKote: Black 
  • Use: Precision/Long-range on big-bore magnums
  • Minimum Barrel Length: 16 in.



Once your suppressor purchase is finalized with Mile High Shooting, a Form 3 will be filed with the ATF requesting approval to transfer your suppressor to your chosen FFL. Initial processing can take 3-7 business days. Customers may help expedite this time frame by requesting the chosen FFL to send a copy of their FFL & SOT to Please note, initial processing time may be delayed further if your chosen FFL fails to provide required documentation in a timely manner. Once submitted, it takes 7-21 days for Mile High Shooting to receive the Form 3 approval. As soon as the approval is received, your suppressor and any accessories will be shipped to your chosen FFL within 24-48 business hours by 2 Day Air. Your chosen FFL will then contact you once it is received and you may complete your Form 4 processing at their facility. 

___LEGAL INFO______

Mile High Shooting Accessories (MHSA) will only ship suppressors to Class III FFL holders. BATF regulation information for Suppressor ownership are as follows:

Be at least 21 years of age.
Be a U.S. citizen. 
Have no felony convictions or domestic violence convictions. 
Have no dishonorable discharge. 
Not deemed mentally unstable by a competent authority. 

The NFA rules/laws are posted through the BATF website
At this time, the following states DO NOT ALLOW private ownership of suppressors: CA, MA, DE, HI, NJ, NY, RI, IL, District of Columbia. CA allows class 3 dealers and class two manufacturers to possess suppressors.




  U.S. Government Export Restriction

This item is restricted for export by the State Department and Department of Commerce. Make sure that you are familiar with all applicable laws.  ITAR Information.


FFL Requirements & Magazine Restrictions

This item has to ship to an FFL. Please read the attached information. Shipping Rules & Magazine Restrictions.