Description+
AR-15 80% 300 AAC Blackout 7.5" Pistol Build Kit with M-LOK Upper
Build a reliable and high-performance AR-15 pistol with the AR-15 80% 300 AAC Blackout 7.5" Pistol Build Kit, available from Tactical Machining. This complete package includes all the essential components you need to complete your rifle at home. Engineered for smooth assembly, dependable operation, and long-lasting performance, this kit removes the guesswork from your next build.
With a precision-forged Tactical Machining 7075 80% lower, a factory-assembled DPMS upper, and premium mil-spec components, this package delivers strength, reliability, and compatibility right out of the box.
Key Features
- Complete AR-15 Pistol Kit: Includes all major components required to finish your AR-15 build at home.
- Factory-Assembled Upper: DPMS 7.5" upper with M-LOK handguard, BCG, and charging handle included.
- 7075 Forged Lower: Tactical Machining forged 80% lower receiver for superior strength and durability.
- Mil-Spec Components: Designed to meet or exceed military specifications for compatibility and reliability.
- Enhanced Customization: Compatible with standard AR-15 components for future upgrades.
What's Included
Upper Assembly
- DPMS 7.5" 300 AAC Blackout barrel with 1:8 twist, M4 feed ramps, phosphate finish
- Pistol-length gas system
- Low-profile gas block and A2 flash hider
- 7" Lightweight M-LOK Free Float Rail
- Forged 7075-T6 aluminum A3 upper receiver
- 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: 7.5"
- Gas System: Pistol Length
- Barrel Profile: Heavy
- Barrel Material: 4150V Steel
- Finish: Phosphate
- Chrome Lining: None
- Muzzle Thread: 5/8-24
- Chamber: 300 AAC Blackout
- Twist Rate: 1:8
- Feed Ramps: M4
- Gas Block Diameter: .750"
- Gas Block Type: Low-Profile
- Muzzle Device: A2 Style Flash Hider
- Receiver Material: Forged 7075-T6 Aluminum
- Receiver Type: M4
- Handguard: 7" Lightweight M-LOK Free Float Rail
- BCG Material: Carpenter 158 Steel
- BCG Profile: Full-Auto
- Overall Length: 17"
Details
The 7.5" 300 AAC Blackout barrel delivers outstanding ballistic performance in a compact pistol-length configuration, while the forged 7075-T6 upper and lower receivers provide superior strength and reliability. Each DPMS upper is assembled and test-fired before shipping to ensure quality and performance. With all major components included, this kit is the perfect foundation for your next AR-15 pistol build.
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, Vermont, and Rhode Island. Always check and comply with all federal, state, and local laws before purchasing or assembling firearm components.
