Griffin Armament revamped its Revolution® line of suppressors. The first release is the The (MOD 4) Revolution 45 designed for .45 caliber subsonic rounds, including the .45-70. The MOD 4 is just the latest in Griffin’s line of Revolution suppressors. Read on to see what’s new.
The Griffin Armament (MOD 4) Revolution
The (MOD 4) Revolution 45
Griffin Armament broke ground with their original Revolution 9 and 45 suppressors with the user-customizable modular length feature. The new (MOD 4) Revolution 45 suppressor builds on that history, but is a total redesign. Griffin focused on user feedback, and the MOD 4 is more secure and easier to mount. It’s also fast and easy to configure and to disassemble for maintenance.
All features are designed to make the end user experience more convenient and satisfying. It also has what they’re saying are vastly increased maintenance intervals, making the need for takedown and cleaning less frequent.
The forward extension cap on the MOD 4 allows toolless reconfiguration. You can easily switch between the full-length 8.81-inch setup and the short 6.56-inch variation. The O-ring biased extension and front cap prevent inadvertent loosening of the extension or cap during use as well.
The MOD 4’s booster housing is permanently installed, so when you tighten or loosen the suppressor, you don’t accidentally loosen the booster housing. Griffin’s booster housing accepts pistons, fixed barrel mounts and spacers, Griffin’s integrated three lug mount, or the Plan A mounts.
The Revolution MOD 4 Suppressors are rated for pistol and subsonic calibers of .458 or lesser diameter, including the .45-70 Government and .45ACP. They do not have any minimum barrel length restrictions. The MOD 4 Revolutions are also full-auto rated for 60 rounds prior to cooling. So if you want to mount one on your .45-70 Gatling gun, go for it. And take a video, please. That would be awesome.
CARBON-GARD™
Griffin has also incorporated another improvement to the MOD 4 generation. They’ve incorporated their patented CARBON-GARD baffle technology. This concept makes cleaning and maintenance of the suppressor easier, even after very high round counts. I’m going to quote them here on this part, so I don’t get anything wrong:
“High-temp silicon o-rings are positioned at each baffle interface as well as the end cap, blast chamber, and extension tubes to fully seal gases and carbon within the baffle stack. This gas seal prevents lead and carbon fouling from building up between the tube body and the baffle stack, eliminating instances of the baffle core being carbon locked inside of the tube body, a condition that is very annoying for the end user.“
EZ-LOK™ Piston
The Revolution MOD 4 Suppressors ship with an EZ-LOK piston. The EZ-LOK provides a more secure and rapid mounting system than direct thread. You will have to get EZ-LOK barrel end adapters separately in order to use the EZ-LOK system. Griffin highly recommends using the EZ-LOK system to “mitigate chances of baffle strikes or catastrophic failure due to the can inadvertently coming loose.”
I thought this next part was interesting. They say that the best practice is to check your pistol suppressor for tightness every 1-3, 15-round magazines due to the excessive vibration inherent to tilt-barrel handguns. If you are using an older direct thread mount, they say that the best practice is to check and tighten the suppressor every 2-3 rounds fired.
I’ll be honest, I’ve mostly used direct thread up until now and never knew I should be checking that frequently. Good to know. Regardless, they point out that the EZ-LOK gives you a 15-fold or greater enhancement in mounting security. That is a pretty huge difference. I may have to consider switching interfaces for my existing Griffin Ultra Light Sportsman HD .36 can. I use it on my 9mm pistols and SBRs as well as on a variety of rifles.
(MOD 4) Revolution 45 Features
- 17-4 H900 Heat Treated Stainless Steel Baffles
- 7075-T6 Aluminum tube body/end cap construction
- Modular Length
- Tool-less Disassembly
- CARBON-GARD Sealed Baffle Tech
- ECO-FLOW Backpressure-Reducing Baffle Tech
- EZ-LOK Piston and Booster Assembly included
- Perpetual Lifetime Warranty™
Pricing and Availability
The MOD 4 Revolution 45 suppressors are shipping now. They have an MSRP of $734.95, and you can either have them shipped directly to your home through their Silencers to Your Door program or have one sent to your local NFA dealer. I used the Silencers to Your Door program when I got my Ultra Light HD suppressor, and it was fast and painless. I had my suppressor in under 4 weeks, I believe it was, and I never had to leave the house to get it.
Griffin Armament suppressors are made in the USA and backed by their Perpetual Lifetime Warranty. I’ve actually been in the market for a .45 caliber suppressor to use on my .45 ACP pistols and carbine, as well as my .400 Legend AR. The MOD 4 Revolution 45 may just end up being my next suppressor purchase.
