AR-15 80% 5.56 NATO 16" Rifle Build Kit with 13.5" M-LOK Upper

Complete your AR-15 build the right way with the AR-15 80% 5.56 NATO 16" Rifle Build Kit, available from Tactical Machining. This comprehensive kit includes all the high-quality components you need to assemble your rifle at home, eliminating the guesswork and ensuring a smooth, reliable build process from start to finish.

Featuring a Tactical Machining 7075 forged 80% lower, a factory-assembled DPMS 16" upper with a lightweight M-LOK free-float rail, and premium mil-spec components, this kit delivers strength, performance, and precision. Whether this is your first rifle build or your next custom project, this package is designed for reliability and long-term use.

Key Features

• Complete AR-15 Build Kit: Includes all major components needed to assemble a 16" AR-15 rifle.
• Factory-Assembled Upper: DPMS 16" 5.56 upper with 13.5" M-LOK handguard, BCG, and charging handle included.
• 7075 Forged Lower: Tactical Machining 80% forged lower receiver for maximum strength and reliability.
• Mil-Spec Quality: Built to exact military specifications for dependable performance and durability.
• Enhanced Modularity: Lightweight free-float M-LOK rail allows for easy accessory attachment and customization.

What's Included

Upper Assembly
- DPMS 16" 5.56 NATO barrel with 1:7 twist, M4 extension, phosphate finish
- Carbine gas system
- Low-profile gas block and A2 flash hider
- 13.5" Lightweight M-LOK Free Float Handguard
- Forged 7075-T6 aluminum A3 upper receiver with forward assist and dust cover
- DPMS Black Nitride 5.56 Bolt Carrier Group
- DPMS Mil-Spec Charging Handle

Lower Components
- Tactical Machining 7075 Forged AR-15 80% Lower Receiver
- Mil-Spec Stock
- Smith Defense 3oz 6-Position Carbine Buffer Tube Kit
- Smith Defense AR-15 Lower Parts Kit

Specifications

• Barrel Length: 16"
• Barrel Material: Chrome Moly Vanadium Steel
• Finish: Phosphate
• Profile: M4
• Caliber: 5.56 NATO
• Twist Rate: 1:7
• Extension: M4
• Gas System: Carbine
• Gas Block: Low Profile
• Receiver Material: Forged 7075-T6 Aluminum
• Receiver Finish: Hardcoat Anodized
• Handguard Type: 13.5" Lightweight Aluminum Free Float M-LOK
• Bolt Material: Carpenter 158 Steel
• Bolt Carrier Material: 8620 Steel
• Staked Gas Key: Yes

Details

This 16" 5.56 NATO AR-15 build kit offers the perfect balance of performance, reliability, and customization. The mid-length gas system provides smooth cycling and reduced recoil, while the lightweight free-float M-LOK rail offers maximum versatility for optics, grips, and other accessories. Each DPMS upper is carefully assembled and test-fired before shipment to ensure quality and reliability. Combined with a Tactical Machining forged lower and premium lower components, this kit is ready to help you build a dependable AR-15 rifle with confidence.

For support related to the upper receiver, please contact DPMS directly.

Compliance Notice

This kit contains an 80% lower receiver and other non-serialized firearm components. Under California law, this product is or contains an unserialized “firearm precursor part” and cannot be sold into the State of California. Orders for shipment to California or residents of California cannot be accepted.

This item is also restricted from shipping to: California, Connecticut, New Jersey, New York, Washington D.C., Washington, Hawaii, Colorado, Philadelphia, York, and Reading (PA), Maryland, Massachusetts, Nevada, Illinois, and Rhode Island. Always check and comply with all federal, state, and local laws before purchasing or assembling firearm components.