.357 Sig Bullet Keyring with Copper Hollow Point

Crafted from a Real Hollow point .357 Sig Bullet

Carry a piece of power and precision wherever you go with the Keyring King .357 Sig Bullet Keyring, made from a genuine, once-fired .357 Sig round featuring a striking copper hollow point.

The .357 Sig cartridge was developed in the early 1990s through a collaboration between SIG Sauer and Federal Premium Ammunition, with the goal of replicating the power of the .357 Magnum in a semi-automatic platform. It quickly gained popularity among law enforcement and tactical units for its high velocity, flat trajectory, and reliable performance in critical situations. This round is still respected today for its exceptional stopping power and penetration, making it a trusted choice for duty and defence.

This bold, functional accessory is more than just a keychain – it’s a piece of tactical art for your pocket, reflecting both innovation and strength.

Key Features:

• Made from a real, inert .357 Sig bullet
• Authentic copper hollow point tip
• Optional laser engraving available
• Durable keyring attachment for everyday use
• Great gift for gun lovers and EDC fans

Please note: This item is inert and contains no active primer or powder. Safe and legal to own in most locations.

.357 SIG, .357 Magnum or 9mm?

The .357 SIG is a 10mm Auto case necked down to take a 9mm (.355) bullet, which gives it its distinctive bottleneck shape – unusual for a pistol round. It was built to match the .357 Magnum revolver round in a semi-automatic pistol, while the 9mm uses a straight case with the same bullet diameter. See also the 10mm Auto, its parent case.

Personalise It

Add initials, a date or a short message with the personalisation option at checkout. More on our laser engraving.

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.357 Sig Bullet Keyring with Copper Hollow Point

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FAQ

Q: Is it a real .357 SIG round? Yes – a genuine once-fired .357 SIG case with a copper hollow-point bullet, made fully inert.

Q: Why does it have a bottleneck? The .357 SIG is a necked-down 10mm Auto case, so it narrows at the neck to hold a 9mm-size bullet.

Q: Is it the same as the .357 Magnum? No – the .357 Magnum is a longer, rimmed revolver round. The .357 SIG was designed to match its performance in a pistol.

Q: Is it safe to carry? Yes. It contains no powder and no live primer, and is legal to own and carry in the UK without a licence. Always check with your airline before travelling abroad with this item.

Q: How is it attached? With a 25mm split ring.

Q: Can it be engraved? Yes – choose the personalisation option at checkout.