Federal Premium Gold Medal AR Match Grade Small Rifle Primers #GM205MAR Box of 1000 (10 Trays of 100)
$76.99
Federal Premium Gold Medal AR Match Grade Small Rifle Primers #GM205MAR
The Federal Premium Gold Medal AR Match Grade Small Rifle Primers GM205MAR are specifically engineered for precision shooters and reloaders who demand consistent ignition and reliable performance in modern sporting rifles such as the AR‑15 platform.
Designed with competitive shooters in mind, these primers deliver the match‑grade consistency and dependable ignition that Federal’s Gold Medal line is known for. Each primer is produced under extremely tight quality control standards to ensure reliable ignition, uniform sensitivity, and repeatable performance.
Unlike standard small rifle primers, the GM205MAR primer is optimized for semi‑automatic rifles, making it an excellent choice for reloaders building precision ammunition for AR‑style rifles and other modern sporting rifles.
For shooters seeking reliable ignition, improved shot‑to‑shot consistency, and dependable performance in AR‑15 reloads, Federal Premium Gold Medal AR Match primers are a trusted solution.

Designed Specifically for AR‑Platform Rifles
Semi‑automatic rifles such as the AR‑15 operate differently than bolt‑action rifles. Because the firing pin moves forward when the bolt closes, primers used in these rifles must be designed to reduce the risk of unintended ignition while still providing reliable performance.
The Federal GM205MAR primer was developed with this in mind. It is designed with primer cup characteristics suitable for AR‑style rifles while still delivering match‑grade ignition consistency.
These primers are ideal for:
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AR‑15 rifles
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Semi‑automatic .223 Remington platforms
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5.56 NATO reloading
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Precision gas‑operated rifle loads
Federal developed these primers to ensure they perform reliably in rifles with free‑floating firing pins, which are common in many modern sporting rifles.

Match‑Grade Ignition Consistency
The Gold Medal line of primers from Federal is widely respected for its exceptional consistency. Every primer is manufactured with strict quality standards to ensure uniform sensitivity and dependable ignition.
Match‑grade primers like the GM205MAR are produced with tighter tolerances than standard primers. This attention to detail helps reduce performance variations and contributes to consistent ballistic performance.
Benefits of match‑grade primer consistency include:
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Improved shot‑to‑shot consistency
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Reliable ignition of powder charges
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Reduced velocity variation
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Improved accuracy potential
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Consistent ballistic performance
These advantages make Federal Gold Medal primers a popular choice among competitive shooters, precision rifle reloaders, and enthusiasts seeking the best possible performance from their reloads.

Ideal for .223 Remington and 5.56 NATO Reloading
The Federal GM205MAR Small Rifle Primer is commonly used when reloading cartridges such as:
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.223 Remington
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5.56 NATO
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.204 Ruger
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.222 Remington
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Other small rifle primer cartridges
These cartridges are commonly used in AR‑platform rifles, making the GM205MAR a popular primer choice among shooters who reload for tactical rifles, precision AR builds, and competition rifles.
Reloaders who are working with precision loads for AR‑15 platforms often prefer primers designed specifically for these rifles to ensure reliable ignition and safe performance.

Reliable Ignition for Semi‑Automatic Rifles
Reliable ignition is essential when reloading ammunition for semi‑automatic firearms. Federal engineered the Gold Medal AR Match primers to provide dependable ignition across a wide range of powder types used in rifle reloading.
These primers perform well with many popular rifle powders used in .223 and 5.56 loads, helping ensure that each round fires reliably and consistently.
Whether shooting for competition, training, or recreational shooting, consistent ignition helps improve accuracy and overall shooting performance.
Trusted by Competitive Shooters
Federal Gold Medal primers are widely used by competitive shooters and precision reloaders because of their consistent performance and high manufacturing standards.
The GM205MAR primer is particularly popular among shooters participating in competitions such as:
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PRS Gas Gun competitions
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3‑Gun competitions
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Tactical rifle competitions
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Precision AR shooting
These shooters rely on ammunition that performs consistently under demanding conditions, making match‑grade components like Federal primers an important part of their reloading process.
Federal’s Reputation for Quality
Federal Premium Ammunition has been producing ammunition and reloading components for decades. Their commitment to quality manufacturing and consistent performance has made them one of the most respected names in the shooting industry.
Federal primers are produced using strict quality control procedures that ensure each primer meets Federal’s performance standards.
For reloaders who demand reliable ignition and dependable performance, Federal primers have become a trusted component in countless reloading setups.
Packaging and Safe Storage
Federal Premium Gold Medal AR Match primers are packaged in protective trays designed to keep primers secure and separated during transport and storage.
Standard packaging includes:
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1000 primers per box
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10 trays of 100 primers
This packaging format makes primers easy to handle during the reloading process while also providing safe storage.
Primers should always be stored in their original packaging and kept in a cool, dry location away from heat sources, sparks, or open flames.
Specifications
Product Name
Federal Premium Gold Medal AR Match Grade Small Rifle Primers #GM205MAR
Primer Type
Small Rifle Match Primer
Primer Diameter
0.175 inches
Primer Category
Match‑grade small rifle primer
Application
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AR‑15 rifle ammunition
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.223 Remington reloading
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5.56 NATO reloading
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Semi‑automatic rifle loads
Quantity
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1000 primers per box
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10 trays of 100 primers
Manufacturer
Federal Premium Ammunition
Model
GM205MAR
Designed For
AR‑platform and semi‑automatic rifles
Key Features
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Match‑grade small rifle primer
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Designed specifically for AR‑platform rifles
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Reliable ignition for semi‑automatic firearms
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Consistent primer sensitivity
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Reduced shot‑to‑shot variation
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High‑quality Federal manufacturing
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Ideal for .223 Remington and 5.56 NATO loads
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Trusted by competitive shooters and precision reloaders
FAQ SECTION (SEO BOOST)
What are Federal GM205MAR primers used for?
Federal GM205MAR primers are small rifle match primers designed specifically for AR‑platform rifles such as the AR‑15. They are commonly used when reloading .223 Remington and 5.56 NATO ammunition.
Are Federal AR Match primers different from standard small rifle primers?
Yes. Federal AR Match primers are designed for semi‑automatic rifles and are optimized for reliable ignition in rifles with free‑floating firing pins.
What cartridges use small rifle primers?
Small rifle primers are commonly used in cartridges such as:
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.223 Remington
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5.56 NATO
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.204 Ruger
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.222 Remington
Always consult a reloading manual before assembling ammunition.
Are Federal Gold Medal primers good for precision shooting?
Yes. Federal Gold Medal primers are widely used by competitive shooters and precision reloaders because of their consistent ignition and high manufacturing standards.
How should rifle primers be stored?
Primers should be stored in their original packaging in a cool, dry environment away from heat, sparks, or open flames.
