Griffin Armament MK1 Multi-Caliber AR-15 Stripped Lower Receiver

Overview:

The Griffin Armament MK1 AR-15 Stripped Lower Receiver is a precision-machined foundation for building a reliable and high-performance AR platform. Constructed from high-grade 7075-T6 aluminum and finished with a durable Type III hardcoat anodizing, this lower receiver is designed to meet mil-spec standards for compatibility and durability. Whether you're assembling a custom rifle or upgrading an existing build, the MK1 provides a solid and dependable base.

Key Features:

• Platform: AR-15 stripped lower receiver for custom builds
• Caliber Compatibility: Multi-caliber design for versatile configurations (.22cal, 5.56mm, .300 Blackout)
• Material: 7075-T6 aluminum forging for strength and durability
• Finish: Type III hardcoat anodized black for wear resistance
• Compatibility: Mil-spec fire control pocket for standard AR components
• Design: Precision machining ensures proper fitment and reliability
• Weight: Lightweight construction for balanced rifle builds

Specifications:

• Model: MK1 Stripped Lower Receiver
• Material: 7075-T6 Aluminum
• Finish: Type III Hardcoat Anodized
• Color: Black
• Firearm Type: AR-15 Platform
• Weight: 7.90 oz
• Caliber: Multi-Caliber Compatible
• Configuration: Stripped (requires lower parts kit and assembly)

Applications:

• Custom AR Builds: Ideal base for building a personalized AR-15 rifle
• Upgrades: Replace or upgrade an existing lower receiver
• Tactical Use: Suitable for duty, defensive, or range configurations
• Competition Shooting: Reliable platform for precision-oriented builds

Additional Features:

• Mil-Spec Compatibility: Works with standard AR-15 upper receivers and components
• Durable Construction: Resistant to wear, corrosion, and harsh environments
• Precision Engineering: Ensures consistent alignment and function
• Builder Ready: Allows full customization with user-selected components

MPN: MK1SL
UPC: 791154085042