Bushmaster ORC II Upper Assembly Review

First Impressions of Bushmaster ORC II Upper Assembly

The Bushmaster ORC II Upper Assembly promises a blend of affordability and performance, a tempting prospect for any AR-15 enthusiast. Bushmaster, a name synonymous with the AR platform, aims to deliver a reliable upper receiver group without breaking the bank. The advertised features, including a Salt Bath Nitride treated barrel and free-float rail, suggest a focus on durability and customization, making it an intriguing option.

My AR-15 build had been slowly evolving, but the aging, budget-grade upper was holding it back. I needed an upper that offered better accuracy and the ability to mount modern accessories.

Unboxing the Bushmaster ORC II Upper Assembly revealed a well-packaged unit. The initial impression was positive; the finish appeared even, and the handguard felt solid. The weight felt balanced, neither too heavy nor too light, suggesting a good compromise between maneuverability and stability.

Comparing it to a similar upper from Palmetto State Armory and a more expensive Daniel Defense option, the Bushmaster ORC II Upper Assembly seemed to strike a middle ground. The PSA offered a lower price point but lacked some of the features, while the Daniel Defense boasted premium components but carried a significantly higher cost. I chose the Bushmaster for its promise of a balanced value proposition.

Initially, I was cautiously optimistic. The price was right, and the features were appealing, but I reserved judgment until I could put it through its paces.


Real-World Testing: Putting Bushmaster ORC II Upper Assembly to the Test

First Use Experience

I tested the Bushmaster ORC II Upper Assembly at my local shooting range, focusing on accuracy and handling. The range offered a controlled environment to evaluate its performance with various ammunition types. The weather was clear and mild, providing ideal conditions for initial testing.

The upper performed admirably during its first outing. I immediately noticed an improvement in accuracy compared to my previous upper. There were no malfunctions or hiccups during the first 200 rounds.

Using a variety of .223 and 5.56 NATO rounds, the Bushmaster ORC II Upper Assembly consistently put rounds on target. The carbine-length gas system felt smooth and responsive. The Snake Charmer Muzzle Brake proved effective in reducing felt recoil.

Extended Use & Reliability

After several months of regular use, the Bushmaster ORC II Upper Assembly has proven to be a reliable and consistent performer. I’ve put approximately 1,500 rounds through it, ranging from budget bulk ammo to higher-end match-grade rounds. It has continued to function without any major issues.

Durability has been commendable; the finish shows minimal signs of wear, even after being subjected to occasional rough handling. The 14” Free Float Rail remains solid and securely mounted. Cleaning is straightforward, and the Salt Bath Nitride treated bolt carrier group wipes clean easily.

Compared to my previous experiences with other AR uppers, the Bushmaster ORC II Upper Assembly has exceeded expectations for its price point. It offers a level of performance and reliability that rivals more expensive options.

Breaking Down the Features of Bushmaster ORC II Upper Assembly

Specifications

The Bushmaster ORC II Upper Assembly boasts a 16-inch 4150 CMV Salt Bath Nitride Heavy Barrel. This barrel length provides a good balance between maneuverability and ballistic performance. Chambered in 5.56 NATO (.223REM), it can safely fire both cartridge types.

It features a carbine-length gas system, common for AR-15s, providing a smooth cycling action. The 1:7 Twist Rate is optimal for stabilizing heavier bullets, typically 62 grains or more, but will perform adequately with lighter projectiles as well. The 1/2×28 Thread Pitch allows for the attachment of a wide variety of muzzle devices.

The upper receiver is constructed from 7075 Forged Aluminum. 7075 aluminum is known for its strength and durability. It uses a Salt Bath Nitride MPI Bolt Carrier Group, which enhances corrosion resistance and reduces friction.

Performance & Functionality

The Bushmaster ORC II Upper Assembly excels in its primary role: delivering accurate and reliable performance. I was impressed by the consistent groupings achieved at 100 yards using a red dot sight. The muzzle brake effectively reduces recoil, allowing for faster follow-up shots.

Its strengths lie in its balance of features and price. The weaknesses are few, but some may find the included muzzle brake too aggressive. Overall, it significantly exceeds expectations for an upper in this price range.

Design & Ergonomics

The design is functional and aesthetically pleasing. The 14” Free Float Rail offers ample space for mounting accessories such as lights, lasers, and vertical grips. The upper feels well-balanced and comfortable to handle.

There is no real learning curve associated with its use. It’s a standard AR-15 upper that will be familiar to most shooters.

Durability & Maintenance

The materials and construction suggest a long service life. The Salt Bath Nitride treatment on the barrel and bolt carrier group significantly enhances corrosion resistance. Maintenance is simple, requiring only regular cleaning and lubrication.

Accessories and Customization Options

The Bushmaster ORC II Upper Assembly does not come with many accessories beyond the standard components. It is designed for customization, thanks to the 14 M-LOK Handguard. This handguard allows for the easy attachment of M-LOK compatible accessories.

The 1/2×28 thread pitch allows for easy swapping of muzzle devices. It is fully compatible with standard AR-15 lower receivers and magazines.

Pros and Cons of Bushmaster ORC II Upper Assembly

Pros

  • Excellent Value for Money: Balances performance and affordability exceptionally well.
  • Reliable Performance: Functions consistently with various ammunition types.
  • Durable Construction: Salt Bath Nitride treated barrel and bolt carrier group enhance longevity.
  • Free Float Rail: Offers ample space for mounting accessories.
  • Improved Accuracy: Noticeable upgrade over budget-grade uppers.

Cons

  • Snake Charmer Muzzle Brake: The included muzzle brake can be too aggressive for some users.
  • Rear Sight: It does not come with a rear sight which requires an additional purchase.


Who Should Buy Bushmaster ORC II Upper Assembly?

The Bushmaster ORC II Upper Assembly is perfect for budget-conscious AR-15 enthusiasts looking for a reliable and accurate upgrade. It’s well-suited for recreational shooters, home defense, and those building their first AR-15. It is also good for hunters who need a dependable upper assembly without breaking the bank.

This product might not be ideal for competitive shooters demanding absolute top-tier performance or those who prefer lightweight builds. They might find a different upper assembly suits their specific needs better.

A must-have accessory would be a quality rear sight. A red dot sight or optic would also complement the upper’s capabilities.

Conclusion on Bushmaster ORC II Upper Assembly

The Bushmaster ORC II Upper Assembly delivers on its promise of providing a reliable and accurate AR-15 upper at an affordable price. It’s a significant upgrade over basic, budget-grade uppers. The Salt Bath Nitride treated barrel and free-float rail are excellent features for the price.

The price is justified given the performance and durability offered. The Bushmaster ORC II Upper Assembly represents excellent value in today’s market.

I would personally recommend the Bushmaster ORC II Upper Assembly to anyone seeking a dependable and accurate upper without breaking the bank. It’s a solid choice for a wide range of applications, from recreational shooting to home defense. Upgrade your AR-15 today and experience the Bushmaster difference!

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