Note that the silencer definition applies only to devices for firearms, i.e. powered by an “explosive”. An air gun silencer is not covered. But if it can be used on a firearm it would be. Thus an airgun silencer permanently attached to the airgun, or too flimsy to be used on a firearm, should be exempt. If you have an interest in pursuing this line of thought submit a sample or drawings to ATF Tech. Branch. I am not aware of any airgun silencer currently made, or determined to be exempt from this definition. But clearly there is room under the definition for such a gadget. Likewise, since antique guns, as defined in the GCA are not “firearms”, a silencer for such a gun is not, or should not be, covered. Perhaps one fitted permanently to a pre-1899 gun? The mind reels.
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eotech 517
For July Only! Buy an EOTech sight, get a Sightmark 3X, 5X or 7X magnifier at no additional cost! 516 and 517 sights sit 7 millimeters higher than other EOTech sights, so the magnifiers need a Picatinny rail riser, which we have for $18 with shipping. Please indicate in the Special Instructions box on the shipping information page if you want a riser. The Eotech 517 is one of the new additions to the EOTech line. The EOTech 517.A65/1 sight is nearly identical to the 512 sight with two important differences. First, the control buttons are placed on the side of the sight, allowing you to more naturally make adjustments while keeping your rifle shouldered. The side control buttons also make using the sight easier when combined with magnifiers or other accessories. Secondly, a portion of the front of the base of the EOTech 517 sits 7 millimeters higher, permitting you to attach the sight over the handguard of M4 and AR15/M16 fifles. (See photo) Twenty brightness levels ensure proper brightness control in either low light or very bright sunlight. An on-board microprocessor provides automatic battery check indicator, up/down brightness scrolling and programmable auto shutdown features. All electronics are fully encapsulated in shock absorbing resin compound. EOTech 517 application photo Eotech 517 Sight Operation:
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