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Questions & Answers
Looking to put my suppressor on my 805. My normal adapter for my AR was to small. Is this what I need ??

I have an 805 Bren II pistol. I have this adapter for my pistol and this is what you need so that you can use a normal AR suppressor or other muzzle device with a 1/2 x 28 thread. Remember, it is a metric left-hand thread so you need a 17 mm wrench and have to remove the flash hider that’s on there now and install this in the opposite way that you would install a muzzle device on a US 1/2 x 28 threaded barrel. Once this device is on the barrel, then you use a right hand threaded device the same as normal AR products that are sold in the US.

by Nick559, Verified Owner, December 15, 2025
will this adapter work on a Sig 229 9MM threaded barrel which has a left hand thread? Expert Answer

No, it will not.

by Jonathan D., Gear Expert, January 2, 2020
Color:
Black
Finish:
Black Nitride
Threads per Inch:
1/2x28
Gun Model:
CZ 805 BREN

Code: 3GL-BRD-CZB-CZ-BREN-805-TA

MPN: CZ BREN 805 TA

UPC: 851876003615

List: $40.00
$39.99

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Product Info for KNS Precision CZ Bren 805 Thread Adapter

Thread Adapter OD 1/2-28 ID M14x1.0 LH Tools Required- 17mm Wrench Finish Black Nitride This adapts your metric CZ Bren 805 barrel to the standard 5.56 thread pitch for standard muzzle devices and suppressors. This adapter is designed for use with firearms that have a 5.56mm bore diameter or smaller. Use of this adapter with a firearm bore diameter later than 5.56mm will cause damage to the firearm and may cause SERIOUS INJURY OR DEATH to the operator. If an adapter is needed for a larger bore diameter, KNS Precision, Inc. offers other adapters to fit your needs.image

Specifications for KNS Precision CZ Bren 805 Thread Adapter:

Manufacturer: KNS Precision
Color: Black
Finish: Black Nitride
Threads per Inch: 1/2x28
Gun Model: CZ 805 BREN
Caliber: 5.56x45mm NATO
Country of Origin: USA

Package Contents:

  • KNS Precision CZ Bren 805 Thread Adapter

KNS Precision CZ Bren 805 Thread Adapter Orderable Models

List of Orderable Models

  • KNS Precision CZ Bren 805 Thread Adapter, Black, CZ BREN 805 TA , MPN: CZ BREN 805 TA , UPC: 851876003615 , Code: 3GL-BRD-CZB-CZ-BREN-805-TA
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