Australian FAL SLR l1a1 blank firing device ...This listing is for one used good condition AUSTRIAN L1A1 blank firing device as seen in the photos.....THESE WILL FIT INCH PATTERN BRITISH L1A1 ALSO....AND CANADIAN C1 C2....... PAINTED YELLOW FOR HIGH VISABILITY .. These will have varying degrees of flaking paint, but will have roughly the same amount as seen in the stock photos. If you purchase multiple items..... I will combine them to reduce the cost of shipping............. this BFD weighs in at Almost 15 oz. each....so shipping cost is what it is.................................................................. ...THESE TOOK AN ENORMAS AMOUNT OF MACHINING ... TOOLING AND MAN POWER TO PRODUCE.... blank firing attachment is a device that fits over the muzzle of an automatic or semi-automatic firearm when firing blank ammunition. It serves two purposes, firstly it prevents any material such as wadding or unspent propellant being forced out of the muzzle of the weapon, secondly it forces gases back down the gas system of the weapon to allow it to automatically cycle, sealing the end of the muzzle in the same way a projectile normally would. PLEASE NOTE: SOME BLANK CARTRIDGES USE A PAPER WAD TO SEAL OFF THE END OF THE CARTRIDGE ....THIS TYPE OF BLANK SHOULD NEVER BE USED WITH THIS DEVICE...IT WILL CLOG THE GAS SYSTEM WHICH WILL MALFUNCTION THE WEAPON ....REQUIRING OR RESULTING A MAJOR CLEANING....ONLY STAR CRIMPED CARTRIDGE SHOULD BE USED...