BersaWhisperTech B-556X
5.56mm / .223 suppressor · 1/2x28 Direct Thread interface · specs and compatibility from the manufacturer
Notable features
- No Barrel Restrictions
- Full-Auto Rated
- Direct Thread
length
5.97″
weight
13oz
MSRP
$619
length
5.97″
weight
13oz
calibers
5.56
material
Steel
interface
1/2x28 Direct Thread
MSRP
$619
- Availability
- Discontinued
- Overall length
- 5.97″
- Diameter
- 1.2″
- Class
- 5.56mm / .223
- n
- 328
- Range
- 0.98″–2.2″
- Median
- 1.57″
- Weight
- 13 oz
- Material
- 17-4 HH1150 Stainless Steel
- Finish / treatment
- SBN, QPQ
- Max caliber
- 5.56mm NATO
- Base interface
- 1/2x28 Direct Thread
- Front cap
- Fixed
- Full-auto rated
- Yes
- Barrel restriction
- None (manufacturer stated)
- MSRP
- $619
- Class
- 5.56mm / .223
- n
- 292
- Range
- $199–$1,955
- Median
- $899
Narrower than most 5.56mm / .223 suppressors
Diameter compared against the 328 5.56mm / .223 suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Cheaper than most 5.56mm / .223 suppressors
MSRP compared against the 292 5.56mm / .223 suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
Mount interface: 1/2x28 Direct Thread. It threads straight onto the barrel, so no mount or muzzle device is involved.
Manufacturer claim
- A full-auto-rated 5.56 suppressor designed for performance and durability.
- MIL-STD 1474D sound level on .223/5.56 NATO: 129.3 dB on a 16 inch M4, 137.3 dB on a 10 inch SBR and 139.8 dB on a 7.5 inch pistol.
- MIL-STD 1474D sound level on 55gr .223: 134.1 dB on a 16 inch M4, 139.7 dB on a 10 inch SBR and 140.0 dB on a 7.5 inch pistol.
- With a slim 1.2 inch diameter, it integrates within most AR platform handguards.
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- Its MonoCore Design manages gas expansion and noise reduction for sound attenuation.
- The direct-thread attachment provides a secure and straightforward mounting solution.
- The B-556X is a monolithic core, direct-thread silencer suitable for use with centerfire ammunition up to .223/5.56mm NATO in full-auto rates of fire.
- Constructed from rugged 17-4 HH1150 stainless steel.
- 17-4 HH1150 stainless steel with an SBN/QPQ treatment.
- X-series NFA markings are on a practically indestructible component; core and sleeve replacement can be done by qualified dealers.