TacFire SSPK300LPK10 AR Pistol Build Kit, 300 Blackout, Black Parkerized Steel, 5/8"-24 tpi, Sports South Exclusive

The TacFire SSPK300LPK10 AR pistol build kit gives you the core parts to assemble a .300 Blackout AR pistol from the ground up. This is a no-frills, practical kit for shooters who want to put together their own 300 Blackout short-barrel rifle platform without buying each component separately. The parkerized steel construction is durable and corrosion-resistant—a time-tested finish that's been trusted in firearms for decades. Whether you're building a 300 Blackout for subsonic rounds, hunting, or defensive use, this kit gets you started with the essential components in one package.

The 5/8"-24 tpi threading is the standard .300 Blackout muzzle pattern, so you have straightforward compatibility with suppressors, muzzle devices, and brakes designed for that caliber. As a Sports South exclusive, this particular build kit won't show up everywhere, making it a solid option if you want a rifle that's distinctly yours rather than a turn-key factory gun.

Assembly requires tools and mechanical knowledge—this is a builder's kit, not a complete ready-to-shoot firearm. You'll need to source a lower receiver (which requires an FFL transfer), and depending on what's included in the kit, possibly some additional small parts. Read through the kit contents carefully before ordering to confirm you have everything you need for your specific build plan.

Key Features

• Parkerized steel construction for durability and corrosion resistance
• Designed for .300 Blackout AR platform builds
• 5/8"-24 tpi muzzle threading for standard suppressor and muzzle device compatibility
• Sports South exclusive—harder to find elsewhere
• Component-based kit for custom builders

Specifications

Frequently Asked Questions

What does this kit include?

The exact components in this kit are not specified in the available product information. Contact us or review the detailed kit contents before purchasing to confirm you have all the parts needed for your build.

Do I need an FFL to buy this kit?

This is a parts kit without a serialized lower receiver. The lower receiver is regulated as the firearm itself and requires an FFL transfer; the other components in this kit typically do not. Verify current regulations in your state, as requirements vary.

What suppressors and muzzle devices fit this?

The 5/8"-24 tpi threading accepts standard .300 Blackout suppressors and muzzle devices designed for that thread pitch. This is the common pattern for 300 Blackout rifles.

Is this kit a complete, ready-to-shoot firearm?

No. This is a component kit for builders. You will need tools, mechanical knowledge, and a separately acquired lower receiver (via FFL) to assemble a functioning AR pistol. It is not a finished firearm out of the box.