AR-15 80% 300 AAC Blackout Pistol Build Kit

Build your AR-15 the right way with the AR-15 80% 300 AAC Blackout Pistol Build Kit, available from Tactical Machining. This comprehensive package includes everything you need to complete your rifle at home using high-quality, mil-spec components from trusted manufacturers. Designed to take the guesswork out of building a reliable firearm, this kit delivers exceptional performance, durability, and value.

From the precision-machined 7075 forged lower to the factory-assembled and test-fired DPMS upper, every part of this kit is engineered for compatibility and long-term reliability. Whether this is your first build or your next custom project, this package ensures a seamless, dependable assembly process.

Key Features

• Complete 80% Build Kit: Includes all major components needed for a full AR-15 pistol build.
• Factory-Built Upper: DPMS upper receiver with 10.5" 300 Blackout barrel, quad rail handguard, BCG, and charging handle.
• Precision 7075 Forged Lower: Tactical Machining 7075 forged 80% lower receiver ready for finishing.
• Enhanced Reliability: Mil-spec components ensure smooth function and long-term durability.
• Ready for Customization: Compatible with standard AR-15 parts and accessories for future upgrades.

What's Included

Upper Assembly
- DPMS 10.5" 300 AAC Blackout barrel with 1:8 twist, M4 feed ramps, pistol-length gas system, and nitride finish
- 9" Panther Quad Rail handguard
- Forged 7075-T6 aluminum A3 upper receiver
- Low-profile gas block and A2 flash hider
- DPMS Black Nitride 5.56 Bolt Carrier Group
- DPMS Mil-Spec Charging Handle

Lower Components
- Tactical Machining 7075 Forged AR-15 80% Lower Receiver
- SB Tactical SBA5™ Pistol Stabilizing Brace®
- Smith Defense 3oz 6-Position Carbine Buffer Tube Kit
- Smith Defense AR-15 Lower Parts Kit

Specifications

• Barrel Length: 10.5"
• Barrel Material: 4150V Chrome Moly Vanadium, nitride treated
• Chamber: 300 AAC Blackout, 1:8 twist
• Feed Ramps: M4-style
• Gas System: Pistol-length
• Handguard: 9" Panther Quad Rail
• Receiver: Forged 7075-T6 aluminum, hard coat anodized

Details

Each DPMS upper is factory-assembled, test-fired, and shipped sealed for quality assurance. Combined with a precision-machined Tactical Machining 7075 forged lower and premium lower parts kit, this build kit gives you everything needed to assemble a dependable AR-15 pistol at home. All components are compatible with standard mil-spec accessories, making future upgrades simple and straightforward.

For any issues 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, Vermont, and Rhode Island. Always check and comply with all federal, state, and local laws before purchasing or assembling firearm components.