Primary Weapons MK1 Mod 1-M Upper 223 Wylde 11.85″ Barrel

The Primary Weapons MK1 Mod 1-M Upper is designed for AR-15 enthusiasts seeking precision and reliability. Chambered in 223 Wylde, this upper receiver combines the versatility of both 5.56 NATO and .223 Remington cartridges, offering enhanced accuracy. The 11.85-inch black anodized barrel provides a sleek appearance and durability, making it a suitable choice for various shooting applications.

Key Features

• 223 Wylde chamber for enhanced accuracy
• 11.85-inch barrel length for compact maneuverability
• Black anodized finish for durability

This upper receiver is a great option for those looking to upgrade their AR-15 with a high-quality component. Available from ICB Firearms, we offer fast nationwide shipping and local pickup in Saint Clair Shores, Michigan.