The Gen3 Sound Mitigation Buffer™ SMB™ is a single-stage captured drop-in replacement for your standard buffer and spring. The SMB™ is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth, quiet operation. Pat. Pend.
FEATURES:
SPECIFICATIONS:
- Actual Weight (Complete System):
- Carbine: 4.41 oz.
- Heavy: 4.91 oz.
- H2: 5.81 oz.
- H3: 6.71 oz.
- 9MM: 9.88 oz.
- Equivalent Weight:
- Carbine: 3.3 oz.
- Heavy: 3.8 oz.
- H2: 4.7 oz.
- H3: 5.6 oz.
- 9MM: 6.9 oz.
Installation instructions:
- 1. Insert polymer base with guide rod into the buffer tube.
- 2. Insert desired spring on the guide rod.
- 3. Insert the buffer over the spring.
Note: Spring will fully set after approximately 100 shots. Main spring can be trimmed at .25 lbs per coil to reduce tension up to a max of 12 coils.
| Weight | N/A |
|---|---|
| Size | SMB-308, SMB-9, SMB-Carbine, SMB-H, SMB-H2, SMB-H3 |
| MPN | ARM158-H2, ARM158-C, ARM158-H3, ARM158-9, ARM158-H, ARM158-308 |
| UPC | 810048490042, 810048490028, 60893990557, 810048490059, 810048490035, 60893990558 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
US
Works great
No problems easy to install and works like it says it should. Just make sure you get the correct weight buffer.
US
Sound Mitigation Buffer works as expected
It’s a well designed sound reduction device. It you suppress your weapon, often times the only sound you’ll hear is the action working. While you’ll still have most of that noise, the echo and squeal of the buffer spring rubbing against the buffer tube is effectively removed. I would recommend this upgrade.
USGreat product
I have these in AR15"s and AR10"s . They work great, no spring noise and they cycle perfectly.
USWorks better than expected!
Quality materials, easy install. The little flag on the end of the spring guide is a very nice touch! Spring noise is gone as advertised. I got the H2 and it smoothes out my 10.5" pistol so well. The buffer has a rubber pad on it that extends past the receiver extension when the upper is removed, and it has to be pressed back in for the upper to close. No big deal. Overall, 9.5/10, and I'll be getting another for my other rifle as well.
USWorks great!
I love this buffer. I use it in my suppressed 300blk AR pistol. Its really does help reduce overall sound of the gun.
