KNS Precision CZ Bren 805 Push Button Take Down Pin Black CZBREN-PB-TD Pin. Our push button pins feature a spring-loaded detent system similar to our push button take down and pivot pins for the AR15 platform and do a great job of saving your thumb and fingertips from the sharp wire edges of the original factory pin. Specifications for KNS Precision CZ Bren 805 Push Button Take Down Pin: Manufacturer: KNS Precision Finish: Black Condition: New Color: Black Country of Origin: USA Package Contents: KNS Precision CZ Bren 805 Push Button Take Down Pin KNS Precision CZBREN-PB-TD Pin: CZ Bren 805 Push Button Take Down Pin Black