Winchester 5.56x45mm NATO 55gr M193 FMJ Rifle Ammunition

Built for Precision, Trusted for Performance

The Winchester 5.56x45mm NATO 55gr M193 Full Metal Jacket (FMJ) Rifle Ammunition is engineered to meet the exacting standards of military-grade training rounds. Loaded to NATO specifications, this versatile ammo delivers dependable accuracy, consistent muzzle velocity, and reliable feeding—making it the ideal choice for shooters looking to train with confidence.

Product Description
Winchester’s M193 5.56mm FMJ ammunition is a high-performance, mil-spec option designed for use in AR-15 platforms and other firearms chambered in 5.56 NATO. Featuring a 55-grain full metal jacket bullet, it’s optimized for clean, reliable function with minimal fouling, ideal for extended range sessions and tactical training. Manufactured with premium components including reloadable brass casings and non-corrosive Boxer primers, this ammo balances affordability and performance without compromising quality.

Specifications

• Caliber: 5.56x45mm NATO

• Bullet Weight: 55 grains

• Bullet Type: Full Metal Jacket (FMJ)

• Muzzle Velocity: ~3,180 fps (feet per second)

• Case Type: Reloadable brass

• Primer: Non-corrosive Boxer

• Rounds Per Box: Typically 20 or 1000 (bulk options vary)

• Military Grade: Loaded to M193 specifications

• Country of Manufacture: USA

Key Features & Benefits

• Mil-Spec Performance: Designed to meet M193 military standards for reliability, accuracy, and velocity

• Clean Shooting FMJ: Reduces barrel fouling and wear, ideal for high-volume shooting

• Consistent Ballistics: Delivers repeatable performance shot after shot for tight groupings

• Reloadable Brass Casings: Durable and reloadable, offering added value for reloaders

• Optimal for AR-15 Platforms: Perfect match for modern sporting rifles and tactical carbines

• Trusted Brand: Winchester’s legacy of ammunition manufacturing ensures dependable quality

Usage Instructions
Intended for rifles chambered in 5.56x45mm NATO. Compatible with .223 Remington firearms; however, consult your firearm manufacturer before use. Store in a cool, dry environment and follow all firearm safety protocols.

Warranty Information
Backed by Winchester’s reputation for quality and performance. For manufacturing concerns or product support, contact Winchester Ammunition directly.

Upgrade your range days with Winchester 5.56x45mm NATO M193 FMJ—engineered for durability, reliability, and precision every time you pull the trigger.

Ammunition Shipping Disclaimer:

Federal law mandates that you must be at least 18 years old to purchase rifles, shotguns, and their respective ammunition, and at least 21 years old to purchase all other firearms and ammunition. Ammunition will be shipped via ground service by the carrier of our choice to the contiguous 48 states only.  A street address is required for delivery. There is no option for shipping ammunition to international customers. 

For safety reasons, we do not accept returns on ammunition with no exception. Always make sure you are using the correct ammunition for your firearm.

DNW Outdoors customers in LA, DC, MN, PA, NY, NJ, MA, IL, CT, and CA should check with their local laws for ammunition restrictions before placing an order.

Due to New York State Law requiring a NICS background check at the time of ammunition purchase DNW Outdoors will not be able to sell and ship ammunition to the State of New York. 

Residents of Illinois purchasing ammunition must provide proof of a FOID card via email  at onlinesales1@dnwoutdoors.com with the subject line FOID before ammunition purchased will be shipped.

Residents of New Jersey purchasing ammunition must provide proof of  a FPIC card or New Jersey Handgun permit via email to onlinesales1@dnwoutdoors.com with the subject line of “FPIC” before  the ammunition purchased will be shipped.

Residents of Connecticut purchasing ammunition must provide proof of a Ammunition Eligibility Certificate or Permit to via email to onlinesales1@dnwoutdoors.com with the subject line of “Ammunition Eligibility Certificate”

DNW Outdoors reserves the right to ask for proof of age when buying age restricted items such as ammunition and firearms. No Exceptions.

**WARNING:** This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov