Is it illegal to purchase an aluminum knuckle duster bottle opener

Brass knuckles bronzed steel Fantasy Skulls

EDC Bottle Opener Double Ring Keychain – Honey Badger Arsenal

Paperweight Brass Knuckles, Buy Online Today

Cakra EDC Gadgets No.1 Best Brass Knuckles

I was told my grandpa carried these brass knuckles while serving in WWII. Is there any way to date them? : r/Antiques

Stainless Steel Knuckle Buster Opener — Bar Products

Knuckle Duster Bottle Opener - Own - Thrillist Nation

Some items of interest.Cuffs, Saps, Blackjack, Brass knuckles

Conner James Radel caught with gear stick knuckle dusters

Brass Knuckles: A Misunderstood Self Defense Tool?

Is it illegal to purchase an aluminum knuckle duster bottle opener? I'm in Canada and the product would be coming from the states. - Quora

Brass Knuckles Isolated Stock Photos - Free & Royalty-Free Stock Photos from Dreamstime

Knuckle Bottle Opener – EntirelyCrimson

Cakra EDC Gadgets No.1 Best Brass Knuckles

If a client sends me a piece of aluminum they own and pay me to mill their property (the piece of aluminum) into a pistol receiver, is that illegal? I know selling