Colt M4 Upper BLK

Colt's Manufacturing - SP63528

The Colt M4 Upper BLK is a testament to Colt's Manufacturing's unwavering commitment to quality, precision, and performance. This upper receiver, with its sleek black finish, is designed to deliver unmatched reliability and accuracy for demanding tactical and recreational applications. It is the perfect upgrade for your AR-15 platform, offering a direct replacement for the factory upper receiver.

Overview

The Colt M4 Upper BLK is a complete upper assembly engineered for seamless integration into your AR-15 rifle. It features a Mil-Spec M4 profile barrel, a durable and reliable bolt carrier group, and a meticulously crafted upper receiver. This upper is a top-tier choice for both experienced shooters and those looking to elevate their AR-15's performance.

Key Features

• Colt-Manufactured: Ensuring uncompromised quality and precision, built to the highest standards.
• Mil-Spec M4 Profile Barrel: Precision-machined, chrome-lined barrel offers superior accuracy, durability, and resistance to corrosion.
• Black Nitride Finish: Provides enhanced corrosion resistance and a sleek, low-glare finish.
• Durable Bolt Carrier Group: Constructed from high-quality materials for reliable and consistent operation.
• Complete Upper Assembly: Comes ready to install on your AR-15 lower receiver, simplifying your upgrade process.

Detailed Specifications

• Manufacturer: Colt's Manufacturing
• Manufacturer Part Number: SP63528
• Barrel Length: 14.5 inches
• Barrel Profile: Mil-Spec M4
• Barrel Material: 4150 Steel
• Barrel Finish: Black Nitride
• Twist Rate: 1:7
• Gas System: Direct Impingement
• Upper Receiver Material: 7075-T6 Aluminum
• Upper Receiver Finish: Black Anodized
• Handguard: Colt M4 (See Note 1)
• Front Sight: Fixed A2 Front Sight (See Note 2)
• Rear Sight: Fixed A2 Rear Sight (See Note 2)
• Weight: Approximately 4 lbs (excluding lower receiver and optic)

Note 1: This upper receiver comes with the standard Colt M4 handguard. If you desire a different handguard, you can purchase a compatible handguard and replace the factory one.

Note 2: The Colt M4 Upper BLK comes with a fixed A2 front and rear sight. For those seeking a more modern sight setup, you can replace these with compatible sights of your choice.

Ballistics and Performance Analysis

The Colt M4 Upper BLK is designed to deliver exceptional accuracy and performance with a wide range of 5.56 NATO ammunition. Its 1:7 twist rate is optimized for a variety of bullet weights, including heavier projectiles designed for extended-range accuracy. With proper ammunition selection and zeroing, you can expect exceptional group sizes at various ranges.

For example, using premium 5.56 NATO ammunition like Federal Premium Gold Medal Match 77gr SMK, you can achieve sub-MOA accuracy at 100 yards, demonstrating the potential for precision shooting.

The 14.5-inch barrel length strikes a balance between portability and muzzle velocity, providing sufficient muzzle energy for effective engagement at various ranges.

Benefits of Colt M4 Upper BLK

• Unmatched Quality and Precision: Colt's Manufacturing is known for its unwavering commitment to quality control, ensuring superior performance and reliability.
• Enhanced Durability: The Mil-Spec M4 profile barrel and durable bolt carrier group are built to withstand harsh conditions and rigorous use.
• Increased Accuracy: The precision-machined barrel and high-quality materials contribute to exceptional accuracy and consistent shot placement.
• Upgrade Convenience: A complete upper assembly allows for seamless integration into your existing AR-15 lower receiver.
• Versatility: Suitable for various applications, including tactical use, recreational shooting, and competitive shooting.

Usage Scenarios

• Home Defense: The Colt M4 Upper BLK provides the precision and reliability required for critical self-defense situations.
• Target Shooting: The accurate and reliable nature of the upper receiver makes it ideal for competitive target shooting and long-range precision.
• Tactical Applications: Military and law enforcement professionals can rely on the Colt M4 Upper BLK for its durability and accuracy in high-stress situations.
• Recreational Shooting: Enjoy high-performance shooting experiences at the range or in the field.

Compatibility

The Colt M4 Upper BLK is designed to be compatible with standard AR-15 lower receivers. Ensure your lower receiver is compatible with the direct impingement gas system and the A2-style front and rear sights before installation.

Quality Assurance

Colt's Manufacturing rigorously tests each upper receiver to ensure it meets its high standards of quality and performance. The upper assembly undergoes extensive testing for durability, reliability, and accuracy before it leaves the factory.

Accuracy and Precision Metrics

While achieving sub-MOA accuracy is achievable with premium ammunition and proper technique, the Colt M4 Upper BLK, in standard configuration, typically offers around 1 MOA accuracy at 100 yards, proving its ability to consistently place shots within a 1-inch group.

Expert Insights

Experienced AR-15 users and industry experts consistently praise the Colt M4 Upper BLK for its exceptional quality, reliability, and performance. Its reputation for accuracy and durability makes it a top choice among both casual and professional shooters. It's a direct replacement for the factory Colt upper, so you know you're getting the best possible option for your AR-15.

Call to Action

Invest in the legacy of Colt's Manufacturing. Upgrade your AR-15 with the Colt M4 Upper BLK today and experience the unmatched performance and reliability that Colt is renowned for. Order yours now and unleash the full potential of your AR-15 platform.