Description
Replacement steel front caps for the Optimus/Revolution Muzzle Brake. These Steel caps allow for more durability over the provided aluminium cap.
Available in 22 caliber and 9mm apertures.
- 17-4 PH Stainless Steel
Due to unprecedented demand, for the foreseeable future ALL dealer silencer orders must be placed through your assigned sales rep. Silencer orders placed via the webstore dealer portal will NOT be fulfilled at your dealer pricing tier. We apologize for any inconvenience.
Replacement steel front caps for the Optimus/Revolution Muzzle Brake. These Steel caps allow for more durability over the provided aluminium cap.
Available in 22 caliber and 9mm apertures.
| Weight | 0.15 oz |
|---|---|
| Select Steel front cap size | |
| Caliber | 9mm |
| Type Of Part | Endcap |

For the life of the product, we will repair or replace the product if it becomes damaged or defective for any reason other than loss/theft, misuse, or natural wear.

Founded in 2005, Griffin Armament is the oldest privately-owned suppressor manufacturer in the US and maintains its comittment to pushing the envelope.

Griffin products are manufactured in Griffin's Watertown, WI facility headquarters by freedom-loving Americans, for freedom-loving Americans.
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Lee Schwartz (verified owner) –
Well I write this review under the terms I’m a dumbass. I forgot to change the end cap on my Optimus and tried to shove a 30 cal through a .22 end cap. Anyone that’s smarter then your basic Marine knows it won’t fit! After contacting Griffin thinking I might have just ruined a huge investment they assured me as long as the baffles were intact and the suppressor as a whole wasn’t dammaged this end cap would fit perfect as a replacement. Received item in 3 days with some extra sticker swag! Over all review, don’t be a dumb ass and change your end caps!
Stephen Garner –
I painted the 22 cal end cap FLORESCENT ORANGE. Hope I don’t need to buy a replacement, but nice to know end caps are available.
William Green –
Some how I always lose track of it. So no o have a spare and keep it in the truck
Thomas Fooshee –
The Griffin Optimus 9 stands out as the best suppressor on the market in my experience. Its strength, reliability, and versatility make it a one-and-done solution for shooters with multiple firearms.
Durability & Reliability:The Optimus Nine is built like a tank. I’ve never had issues with it coming apart during use—a complaint I hear regularly about other suppressors at the range. This kind of reliability is invaluable, especially for those who shoot often or put their gear through tough conditions.
Versatility: One of the biggest advantages is its modularity. With the right mounts and adapters (taper mounts, three-lug adapters, direct thread hub adapters, etc.), this suppressor can run on everything I own, from 9mm pistols to 7.62 rifles. While some may complain about the cost of modularity or the need for extra parts, it’s still far more affordable and convenient than buying a separate suppressor for each firearm.
Customer Support:Griffin Armament’s customer service is top-notch. A few emails to their team got me all the parts I needed, and they provided clear instructions on assembly and use. Their support adds a lot of value to the ownership experience.
Long-Term Value: Yes, quality comes at a price, but the Optimus 9 is a one-time purchase that covers all my needs. When you factor in the cost of buying multiple suppressors versus a few adapters, the savings are obvious. My family and friends have all chosen this model after seeing how well it works for me.
Conclusion: If you want excellence and are willing to invest a bit more upfront, the Griffin Optimus 9 is the way to go. It’s robust, reliable, and truly universal with the right accessories. In my opinion, anything Griffin makes is worth the investment for shooters who value quality and versatility.
Highly recommended!