I would like to bring to your attention an improved passive linesbros with protection against snagging in reeds and debris during the reverse movement of the gun! The flag is cocked and remaining cocked, it is closed with a 1mm stainless steel shutter! The clamping force of the flag is regulated by the butt cap plug by compressing the rubber washer! Between the rubber washer and the stainless steel 1mm fluoroplastic washer for sliding!