CPC F41B 11/70 (2013.01) [F41A 21/30 (2013.01)] | 19 Claims |
1. An apparatus, comprising:
a plurality of rings, a center of each ring of the plurality of rings being collinear,
wherein each ring of the plurality of rings includes a plurality of flexible filaments fixed radially to the ring toward the center of the respective ring such that the filaments of the plurality of flexible filaments are arranged to move in response to a gas passing through the filaments, a length of each filament being a fraction of a radius of the ring such that the plurality of filaments defines an opening at the center of the respective ring; and
a coupler for coupling the plurality of rings to a muzzle end of a barrel of a gun.
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