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Why Light Won

For most of the twentieth century, infantry rifles fired full-power rounds like the .303 British and the 7.62×51 NATO. The 5.56×45 changed that. A 5.56 round weighs roughly half as much as a 7.62×51, so a soldier can carry around twice the ammunition for the same load, and the lighter recoil makes rapid, accurate fire easier.

NATO standardised the 5.56×45 in 1980, and the British Army adopted it with the SA80 in the mid-1980s. In the US it goes back further, to the M16 in the 1960s – the military cousin of the civilian AR-15.

On Your Keys

“Light but lethal” sums that up, and it suits the keyring too: the 5.56 is one of the slimmest, lightest rounds we make into keyrings, so it sits comfortably on a bunch of keys.

  • Once-fired 5.56×45 NATO brass, cleaned and polished
  • Resized to full length with a seated bullet – fully inert
  • Engraving cut into the brass by fibre laser
  • 25mm split ring

Compare it with the full-power 7.62×51 NATO keyring, or see the other 5.56 designs: “Standard issue” and “Suppress the Threat”. The plain 5.56 NATO keyring has no engraving.

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5.56 NATO Bullet Keyring Laser Engraved “Light but lethal.” - AR-15 themed 5.56 NATO Bullet Keyring Laser Engraved “Light but lethal.” - AR-15 themed
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FAQ

Q: Is it a real 5.56 round? Yes – a genuine once-fired 5.56×45 NATO brass case with a seated bullet. Not a replica.

Q: Is 5.56 the same as .223 Remington? They are closely related but not identical – the 5.56 NATO runs at higher pressure, and chambers differ slightly. See our .223 Remington keyring for the civilian round.

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

Q: Can I personalise it? Yes – choose the personalisation option at checkout and add a name or date.

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

Q: Will the engraving wear off? No. It is cut into the brass by laser, not printed.

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Weight 0.024 kg
Calibre

5.56x45mm NATO

Round length (approx.)

57.4 mm

Case length

44.7 mm

Rim diameter

9.6 mm

Bullet diameter

5.7 mm

Split ring

25 mm

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