

ArmaLite AR103GN18 AR-10 Competition 308 Win 18" 25+1 Black Hard Coat Anodized Adjustable Luth-AR MBA-1 Stock
$2,334.99
Please Allow 4-5 Business Days for In Store Pickup
Master Your Competition: The ArmaLite AR103GN18 AR-10 Competition Rifle in .308 Win
Are you a competitive shooter looking for an edge? Do you demand precision, speed, and unwavering reliability from your firearm in intense 3-Gun or practical rifle matches? Look no further. The ArmaLite AR103GN18 AR-10 Competition rifle, chambered in the versatile .308 Winchester, is meticulously engineered to meet the rigorous demands of professional and aspiring competitive shooters alike. This isn't just another AR-style rifle; it's a purpose-built performance machine designed to dominate the firing line, right out of the box.
For those asking, "What is the best rifle for 3-gun competition?" or "How can I improve my practical rifle scores?", the ArmaLite AR103GN18 offers a compelling answer. It integrates premium components typically found in custom builds, saving you time and significant expense on aftermarket upgrades. This rifle is your direct path to enhanced performance, delivering the accuracy and rapid handling needed to shave crucial seconds off your stage times and consistently hit targets at varying distances.
Unpacking the Performance: Key Features for Competitive Dominance
The ArmaLite AR103GN18 stands out due to its thoughtful selection of high-performance components, each contributing to its overall excellence. Let's delve into what makes this rifle a top-tier choice for serious competitors.
Precision Trigger System: The Heart of Accuracy
One of the most critical elements in any precision rifle is its trigger, and ArmaLite understands this implicitly. The AR103GN18 comes standard with a Timney 3-lb., single-stage trigger. Why is this so crucial for competitive shooting?
- Crisp Break: A single-stage trigger with a clean, predictable break eliminates creep and overtravel, allowing the shooter to maintain perfect sight alignment through the shot. This translates directly to tighter groups and more consistent hits.
- Reduced Pull Weight: A 3-pound pull weight is light enough to minimize disruption to your aiming point, yet substantial enough to maintain a safe and controlled firing sequence under pressure.
- Enhanced Speed: For rapid follow-up shots in dynamic scenarios, a light, crisp trigger allows for faster splits and improved control, which is essential for scoring well in multi-target stages.
- Minimizing Human Error: By providing a consistent and predictable interface, the Timney trigger helps mitigate common shooting errors, making it easier for shooters of all skill levels to achieve their best performance.
For shooters considering "How do I get better accuracy with my AR-10?", a premium trigger like the Timney in the AR103GN18 is a foundational answer, offering a significant advantage over standard factory triggers.
Adaptable Ergonomics: Luth-AR MBA-1 Adjustable Stock & Ergo Wide Grip
Comfort and consistent shooter interface are paramount for sustained performance. The ArmaLite AR103GN18 addresses this with a lightweight and highly adjustable buttstock combined with a superior grip.
- Luth-AR MBA-1 Adjustable Stock: This isn't just any stock; it's a Luth-AR MBA-1, specifically chosen for its adjustability and lightweight design.
- Length-of-Pull (LOP) Adjustment: Seamlessly adjust the stock's length to perfectly fit your body mechanics, ensuring a comfortable and repeatable shooting position whether you're standing, kneeling, or prone. This adaptability is vital when transitioning between different shooting positions in a match.
- Adjustable Cheekpiece: Achieve a perfect cheek weld every time. A consistent cheek weld is critical for maintaining proper eye relief with your optic, reducing parallax errors, and ensuring repeatable head position for every shot. This feature directly contributes to consistent accuracy, especially when engaging targets at varying distances.
- Lightweight Construction: Despite its robust adjustability, the Luth-AR MBA-1 keeps the overall weight of the rifle manageable (8.90 lbs total), allowing for quick transitions between targets and reduced fatigue during long matches.
- Ergo Wide Grip: The ergonomic wide grip ensures a comfortable and secure hold, minimizing hand fatigue and providing excellent control over the rifle. This stability allows for better recoil management and faster target acquisition.
When considering "What ergonomic features should I look for in a competition rifle?", the adjustability of the Luth-AR MBA-1 stock and the comfortable Ergo grip of the ArmaLite AR103GN18 are prime examples of design choices that directly benefit the shooter.
Seamless Operation: Ambidextrous Safety & Raptor Charging Handle
In the fast-paced world of competitive shooting, every second counts, and intuitive controls are non-negotiable.
- Ambidextrous Safety: Whether you're a right-handed or left-handed shooter, or require the flexibility to manipulate the safety from either side during a stage, the ambidextrous safety ensures rapid and secure operation. This feature promotes efficiency and safety under pressure.
- Raptor Charging Handle: Renowned for its smooth, effortless operation, the Raptor charging handle allows for quick and positive manipulations of the bolt, whether you're loading, clearing a malfunction, or performing a chamber check. Its oversized levers are easy to grasp, even when wearing gloves, making it an ideal choice for the demands of competition.
These operational enhancements contribute significantly to the rifle's overall "user-friendliness" and speed during high-stress scenarios.
Unyielding Reliability: Direct Impingement System & Robust Construction
The ArmaLite AR103GN18 is built to perform consistently, shot after shot, match after match.
- Direct Impingement Operating System: This proven system, a hallmark of the AR platform, provides a lighter overall rifle, fewer moving parts, and excellent balance. It contributes to the rifle's manageable recoil impulse and ease of cleaning.
- 7075-T6 Aluminum Receiver: The receiver is crafted from high-grade 7075-T6 aluminum, known for its exceptional strength-to-weight ratio and durability. This material ensures the rifle can withstand the rigors of competitive use.
- Black Hard Coat Anodized Finish: The receiver features a black hard coat anodized finish, providing superior resistance to wear, corrosion, and scratches. This not only maintains the rifle's aesthetic appeal but also contributes to its long-term reliability in various environmental conditions.
For those asking, "How durable is an AR-10 for competition use?", the ArmaLite AR103GN18's construction from top-tier materials like 7075-T6 aluminum and its durable finish provide a robust answer.
The Powerhouse Barrel: Heavy Match Grade 18" with Armalite Tunable Brake
The barrel is the cornerstone of a rifle's accuracy, and ArmaLite spares no expense in equipping the AR103GN18 for precision.
- 18" Heavy Match Grade Barrel: The 18-inch barrel length strikes an optimal balance for the .308 Win caliber in competition. It provides ample velocity for engaging targets out to practical distances while remaining maneuverable for close-quarters engagements and transitions. The "heavy match grade" designation signifies a barrel machined to exceptionally tight tolerances, ensuring superior accuracy and consistency.
- 1:10" Twist Rate: The 1:10" twist rate is ideal for stabilizing a wide range of .308 Winchester bullet weights, from 150-grain to heavier 175-grain projectiles, ensuring optimal accuracy with your preferred competition ammunition.
- Black Phosphate Barrel Finish: This durable finish protects the barrel from corrosion and wear, contributing to its longevity and consistent performance.
- Armalite Tunable Brake: Managing recoil is crucial for rapid follow-up shots. The integrated Armalite Tunable Brake significantly reduces muzzle rise and felt recoil, allowing shooters to stay on target and make quicker, more accurate subsequent shots. The tunability allows for fine-tuning the gas dispersion to match individual preferences and ammunition types.
If you're wondering "What barrel length is best for a .308 AR-10 for competitive shooting?" or "How do muzzle brakes help in 3-gun?", the AR103GN18's 18-inch heavy match grade barrel and tunable muzzle brake are specific features designed to address these performance needs.
Why Choose the ArmaLite AR103GN18 AR-10 Competition Rifle?
The ArmaLite AR103GN18 isn't just a collection of premium parts; it's a cohesive system designed to give you a definitive advantage.
- Out-of-the-Box Competition Ready: Unlike many rifles that require immediate and costly upgrades to be competition-viable, the AR103GN18 arrives with the Timney trigger, Luth-AR stock, Ergo grip, and tunable muzzle brake already installed. This means less time and money spent tinkering, and more time training and competing.
- Uncompromising Accuracy: The combination of the heavy match grade barrel, crisp Timney trigger, and stable platform delivers the precision needed to consistently hit small targets at distance and achieve tight groups.
- Exceptional Handling: Its balanced weight, adjustable stock, and ergonomic controls ensure comfortable and efficient handling, reducing fatigue and allowing for rapid target transitions and engagement.
- Renowned ArmaLite Quality: ArmaLite has a long-standing reputation for producing high-quality, reliable AR-platform rifles. The AR103GN18 upholds this legacy, built with durable materials and meticulous craftsmanship.
- Versatility in .308 Win: While optimized for competition, the .308 Winchester caliber also makes this rifle suitable for precision target shooting, and potentially even hunting medium to large game, making it a truly versatile firearm investment.
This rifle is a prime example of an investment that pays dividends in performance and satisfaction for competitive shooters.
Who is the ArmaLite AR103GN18 For?
This rifle is specifically tailored for:
- Competitive 3-Gun Shooters: Who need a reliable, accurate, and fast-handling large-frame AR for dynamic stages.
- Practical Rifle Competitors: Demanding precision and quick follow-up shots on a variety of targets.
- Long-Range Enthusiasts: Who appreciate a high-quality .308 platform capable of consistent accuracy.
- Serious Shooters: Looking to upgrade from a standard AR-10 to a purpose-built competition model without the hassle and expense of custom modifications.
- Individuals Seeking a High-Performance .308 AR: For general shooting, training, and a reliable, precise firearm that can adapt to various shooting disciplines.
Maintaining Your ArmaLite AR103GN18 for Peak Performance
To ensure your ArmaLite AR103GN18 continues to perform at its peak, regular maintenance is key. As a direct impingement system, it benefits from routine cleaning of the bore, bolt carrier group, and upper receiver to remove carbon fouling. Lubrication of all moving parts is also critical for smooth operation and longevity. Always refer to the official ArmaLite owner's manual for specific cleaning and maintenance guidelines to preserve your rifle's performance and extend its lifespan. Proper care will ensure that this rifle remains a dominant force on the competition circuit for years to come.
Ready to Elevate Your Game?
The ArmaLite AR103GN18 AR-10 Competition Rifle is more than just a firearm; it's a commitment to excellence. Engineered for precision, built for speed, and designed for victory, it offers competitive shooters a distinct advantage on the range. If you're ready to experience the difference a truly purpose-built competition rifle can make in your scores and confidence, the ArmaLite AR103GN18 is waiting.
Discover the ArmaLite AR103GN18 and other premium firearms and accessories at DEGuns.com. As a trusted retailer of high-quality firearms, DEGuns provides access to the best equipment to help you achieve your shooting goals.
Specifications of the ArmaLite AR103GN18 AR-10 Competition Rifle
Feature | Detail |
---|---|
Brand | ArmaLite |
Series | Competition |
Model | AR-10 |
Caliber | .308 Winchester |
Barrel Length | 18 Inches |
Operating System | Direct Impingement |
Capacity | 25+1 Rounds |
Action | Semi-Automatic |
Overall Length (OAL) | 40.30" - 41.50" |
Weight | 8.90 Pounds |
Barrel Finish | Black Phosphate |
Barrel Description | Heavy Match Grade |
Twist Rate | 1:10" |
Muzzle Device | Armalite Tunable Brake |
Receiver Material | 7075-T6 Aluminum |
Receiver Finish | Black Hard Coat Anodized |
Stock Description | Adjustable Luth-AR MBA-1 |
Stock Material | Synthetic |
Stock Finish | Black |
Grips | Black Polymer (Ergo Wide) |
Trigger | Timney Single-Stage (3 lb) |
Safety | Ambidextrous |
Charging Handle | Raptor |
Sights | Picatinny Rail (Optics Ready) |
Gun Platform | AR-10 Style |
Hand | Right Hand (Ambidextrous Controls) |
Magazine Type | AR-10 |
SKU | AR103GN18 |
UPC | 651984015933 |
Specifications
Explore the specific details and characteristics
- CATEGORY
- RIFLES CENTERFIRE TACTICAL
- BRAND
- ArmaLite
- MODEL
- AR-10
- Barrel Length
- 18"
- Caliber
- .308 Winchester
- ACTION
- SEMI-AUTO
- CAPACITY
- 25+1
- TRIGGER
- TIMNEY SINGLE-STAGE
- SAFETY
- AMBIDEXTROUS
- OAL
- 40.30"- 41.50"
- WEIGHT
- 8.90 LBS
- STOCK DESCRIPTION
- ADJ LUTH-AR MBA-1
- METAL FINISH
- BLACK HARDCOAT ANODIZED/BLACK PHOSPHATE
- MUZZLE
- ARMALITE TUNABLE BRAKE
- RECEIVER MATERIAL
- 7075-T6 ALUMINUM
- SIGHTS
- PICATINNY RAIL
- BARREL DESCRIPTION
- HEAVY MATCH GRADE
- TWIST
- 1:10"
- BARREL LENGTH RANGE
- 18" TO 18.99"
- WEIGHT RANGE
- 8 LBS TO 8.99 LBS
- HAND
- RIGHT HAND
- STOCK FINISH GROUP
- BLACK
- METAL FINISH GROUP
- BLUED/BLACK
- SKU
- AR103GN18
- UPC
- 651984015933
- MPN
- AR103GN18