Details
Davidson Defense Homefront 10.5" Pistol-Gas .300 Blackout AR-15 Complete Upper Assembly | 1:8 Twist | Quad Rail Handguard | Adjustable Gas Block | A2 F-Marked FSB
This Davidson Defense Homefront complete upper assembly delivers performance and versatility engineered for .300 Blackout ammunition in both suppressed and unsuppressed configurations. Built around a 10.5-inch barrel crafted from 4150 Chrome Moly Vanadium steel with 1:8 twist rate, this upper is optimized for reliable cycling with .300 Blackout loads. The 7075-T6 aluminum upper receiver features M4 feed ramps for enhanced feeding reliability, while the black aluminum quad-rail handguard provides extensive accessory attachment options on all four sides. Equipped with a carbine-length gas system, premium low-profile adjustable gas block located under the handguard for fine-tuning, A2 F-marked front sight base for a reliable aiming solution, aluminum charging handle, and a complete 9310 alloy steel bolt carrier group with nitride finish, this suppressor-ready complete upper with 5/8x24 thread pitch offers shooters functionality and adaptability for tactical and recreational .300 Blackout applications.
Key Features
- 10.5" .300 Blackout Barrel – 4150 CrMoV steel with 1:7 twist rate for subsonic and supersonic loads
- Premium Low-Profile Adjustable Gas Block – Fine-tuning capability for suppressed/unsuppressed shooting (located under handguard)
- A2 F-Marked Front Sight Base – Reliable iron sight aiming solution with proper front sight placement (not used as gas block)
- Carbine-Length Gas System – Reliable operation optimized for 10.5-inch barrel
- Black Aluminum Quad-Rail Handguard – Extensive Picatinny mounting options on all four sides
- 7075-T6 Aluminum Upper Receiver – M4 feed ramps for enhanced feeding reliability
- Suppressor-Ready Design – 5/8x24 thread pitch for .300 Blackout suppressors
- Complete 9310 Alloy Steel Bolt Carrier Group – Nitride finish for increased durability and reliable cycling
- Aluminum Charging Handle – Smooth operation included
Perfect For
- .300 Blackout pistol builds for suppressed and unsuppressed shooting
- Shooters requiring adjustable gas systems with integrated iron sight capability
- Tactical applications needing maximum accessory mounting options on all four rail surfaces
- Builders seeking a complete upper assembly ready for immediate installation
.300 Blackout Barrel Optimized for Versatile Loads
The 10.5-inch barrel is crafted from 4150 Chrome Moly Vanadium steel for exceptional strength and durability. The 1:8 twist rate is optimized for .300 Blackout ammunition, providing reliable stabilization for both subsonic loads (typically 190-220 grains) and supersonic loads (110-125 grains). This versatility makes the barrel equally capable for suppressed subsonic shooting with minimal sound signature and high-velocity supersonic applications for maximum energy delivery. The 10.5-inch length provides an ideal balance between velocity retention and compact maneuverability for pistol configurations.
Premium Low-Profile Adjustable Gas Block
The premium low-profile adjustable gas block is located under the handguard and allows precise fine-tuning of gas flow for optimal performance across different ammunition types and suppressor configurations. This adjustability is essential for .300 Blackout platforms that may run both subsonic and supersonic loads, with or without a suppressor. By tuning gas flow, you can ensure proper cycling with heavy subsonic ammunition when suppressed, then adjust for reliable operation with supersonic loads or unsuppressed shooting. The low-profile design maintains a clean appearance under the handguard while providing the tuning capability serious .300 Blackout shooters demand. Note: The A2 F-marked front sight base is not used as a gas block; the adjustable gas block is located under the handguard.
A2 F-Marked Front Sight Base
The A2 F-marked front sight base provides a solid, reliable aiming solution with proper front sight placement for zeroing with standard rear sights. The F-marking indicates the correct positioning for achieving standard AR-15 sight radius and zero distances. This integrated iron sight offers a backup aiming system that requires no batteries and remains functional in all conditions, providing shooters with confidence even when optics fail or in environments where electronics may be compromised.
Suppressor-Ready with Quad-Rail Handguard
This upper is suppressor-ready with 5/8x24 thread pitch, the standard threading for .300 Blackout suppressors and muzzle devices. The adjustable gas block enables proper tuning for suppressed shooting, allowing you to optimize cycling and reduce wear on components when running with a suppressor. The black aluminum quad-rail handguard provides Picatinny rails on all four sides for maximum mounting flexibility. This extensive rail coverage allows you to mount lights, lasers, foregrips, pressure switches, and other accessories exactly where you need them for tactical setups, night vision compatibility, or any configuration requiring multiple accessories.
Complete Bolt Carrier Group and Upper Assembly
This complete upper includes a bolt carrier group constructed from 9310 alloy steel with a nitride finish for exceptional hardness, corrosion resistance, and reliable cycling with .300 Blackout ammunition. The 7075-T6 aluminum upper receiver features M4 feed ramps that guide cartridges smoothly from magazine to chamber, enhancing feeding reliability across various .300 Blackout magazines and ammunition types. The included aluminum charging handle provides smooth operation for quick manipulation during shooting sequences, making this upper ready for immediate installation on your lower receiver.
Always follow safe handling and manufacturer instructions.
Ensure compliance with all applicable federal, state, and local laws.
If using a suppressor, verify proper gas system adjustment for reliable cycling with your specific ammunition and suppressor combination.
Confirm fitment with your lower receiver before installation.
