Winchester Ammunition 

Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K

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Product SKU # :TSWM855K |  MPN: WM855K  | UPC # :20892228474
 Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K
USDTargetSportsUSA11.50
Ammo+:
$10.58 /$0.529 Per Round
Non-Member:
$11.50 /$0.575 Per Round
USDTargetSportsUSA575.00
Ammo+:
$529.00
Non-Member:
$575.00
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You must be 21 years or older to order ammunition. Ammunition must ship UPS ground. Due to safety considerations and legal/regulatory reasons, Ammunition may not be returned. Please check local laws before ordering. By ordering this Ammunition, you certify you are of legal age and satisfy all federal, state and local legal/regulatory requirements to purchase this Ammunition.

Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K

The Winchester 5.56mm M855 NATO Ammunition, featuring a 62 Grain Green Tip Full Metal Jacket (FMJ), is a high-performance round specifically designed for use with AR platform rifles. Known for its precision and reliability, this ammunition is manufactured using Lake City Brass and packaged in Winchester's iconic white box. The M855 rounds are engineered with a lead alloy and steel core, offering enhanced penetration capabilities. Recognized worldwide for quality and high-performance, Winchester ammunition is a top choice among shooting enthusiasts for training and target practice.

Features and Specifications:

  • Compatibility: Designed for use with AR platform rifles.
  • Performance Metrics: Achieves a muzzle velocity of 3060 fps and a muzzle energy of 1288 ft. lbs.
  • Technology Enhancements: Constructed with a denser core using lead alloy and steel, lending increased weight and penetration capabilities.
  • Versatility: Ideal for target shooting, training, and plinking.
  • Packaging: Available in bulk with free shipping options for cost-effective purchasing.

Deep Dive

Overview

The Winchester 5.56mm M855 NATO Ammunition is designed primarily for military and tactical applications but has gained popularity among civilian shooters for target practice due to its robust design and efficiency. The green tip signifies its armor-penetrating capabilities, thanks to its steel core, which ensures better energy transmission upon impact.

History and Development

Developed as a more advanced version of standard NATO ammunition, the M855 evolved from the requirements of modern military forces seeking a versatile round capable of supplying consistent performance against both traditional and hardened targets. Manufacturing techniques have honed Winchester's reputation for reliability, making the ammo both a practitioner’s and an aficionado's preference.

Common Questions and FAQs

  • What is the difference between M855 and M193?
    M855 is a heavier 62-grain bullet with a steel core, typically offering better penetration compared to the lighter, 55-grain lead core M193.
  • Is Winchester M855 considered armor-piercing?
    While the M855 has better penetration than standard FMJ rounds due to its steel core, it is not officially classified as armor-piercing.
  • Are these rounds suitable for hunting?
    While possible, these rounds are generally not ideal for hunting due to their FMJ design, which does not expand upon impact.
  • How is this ammunition packaged, and are bulk options available?
    This ammunition is available in bulk with free shipping options that make it a cost-effective choice for high-volume shooters.
  • Is this ammunition safe to use in my rifle?
    It's safe to use in rifles chambered specifically for 5.56mm NATO. Always check your firearm’s specifications.
  • Do these rounds comply with local laws?
    Always verify your local regulations on ammunition types; some states may have restrictions on green tip ammunition.

The 'Round Up'

Perfect Fit for:

  • Target Shooting / Practice

Why It Stands Out:

Winchester’s 5.56mm M855 NATO Ammunition is celebrated for its reliable performance and consistent accuracy across various shooting scenarios. With a steel core for added penetration and branded as a versatile choice for both military training and civilian target practice, this ammo stands out as a dependable choice for AR platform rifle users. Buyers can take advantage of bulk purchase options with free shipping, making it a versatile and economically appealing selection.

Field Details
MPNWM855K
UPC20892228474
ManufacturerWinchester Ammunition
PlatformRifle
Ammo ApplicationTarget Shooting / Practice
Ammo TypeGreen Tip Full Metal Jacket
Caliber5.56mm NATO Ammo
Grain Weight62
Quantity Per PackageBox of 20 / Case of 1000
Test Barrel LengthNot Provided
Muzzle Velocity3060 fps
Muzzle Energy1288 ft. lbs
Ballistic Coefficient (G1)Not Provided
Case TypeBrass Casing
Primer TypeBoxer
CorrosiveNo
ReloadableYes
Lead FreeNo
Staked PrimerNot Provided
Country of OriginUSA

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Attention Ammunition Buyers You must be 21 years or older to order ammunition. Ammo must ship UPS/FedEx Ground. For safety reasons, we cannot accept returns on ammo. Always, make sure that you use the correct ammunition for your gun. Please check local laws before ordering.


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Proposition 65 Warning
 This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov.

Reviews

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Comments and Reviews on Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great price 5.56 rounds, no issues with this ammo from Winchester USA! Thanks Target Sports USA!
Reviewed by Gregory  B
6/20/2025 3:05:52 PM
Comments and Reviews on Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Solid 5.56 rounds, no issues with this ammo from Winchester. Thanks TSUSA.
Reviewed by Donald.  B
5/8/2025 2:11:03 AM
Comments and Reviews on Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
M855 Lake City, need I say more? Only con is 62 grain whether green tip or FMJ always considerably more. Thanks TSUSA!
Reviewed by David  F
5/7/2025 7:14:56 PM
Comments and Reviews on Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great ammo great price. Solid 5.56 rounds from Winchester. Thanks TSUSA.
Reviewed by Jason  S
4/7/2025 11:38:55 AM
Comments and Reviews on Winchester 5.56mm M855 NATO Ammunition 62 Grain Green Tip Full Metal Jacket - WM855K
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
cycles perfectly time and time again, great rounds from winchester! thanks target sports usa!
Reviewed by James  V
4/1/2025 6:21:30 PM
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Questions & Answers

Frequently Asked Questions
Question:As of 10/13/2023, Is it true that Lake City cancelled all commercial contracts and this will no longer be available? - Brandon (10/16/2023)
Response:Brandon, this has been reported by multiple news sources, so it is very likely. Thank you for visiting TargetSportsUSA.com
Question:Do these have a LC headstamp on the casing? - Mark (03/31/2023)
Response:Mark, yes, this ammunition has the LC headstamp. Thank you for visiting TargetSportsUSA.com
Question:Is this ammo "X" grade, i.e. "seconds", or is it legitimate M193??? The part numbers seem to indicate it's the higher quality M193, NOT XM193. Thank y'all! - Todd (11/28/2022)
Response:Todd, this ammo is M855 green tip, not M193. Thank you for visiting TargetSportsUSA.com
Question:What’s the difference between this and the PMC X-Tac? I see this has a higher FPS. Any other reasons why this may be better? - Gary (06/30/2022)
Response:Gary, the only difference between the two is the manufacturer. They are the same M855 round. That said everyone has preferences and your firearm may like one more than the other. Thank you for visiting TargetSportsUSA.com
Question:Does this Winchester M855 have the NATO stamp casing? - Ron (02/09/2022)
Response:Ron, yes this 5.56mm M855 NATO ammo from Winchester has the NATO stamp on the casing. Thank you for visiting TargetSportsUSA.com

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