RADICAL FIREARMS AR-15 COMPLETE UPPER - 300 BLK - 16" - BLACK
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Radical Firearms
RADICAL FIREARMS AR-15 COMPLETE UPPER - 300 BLK - 16" - BLACK
The Radical Firearms 300 Blackout Complete Upper delivers mil-spec performance and versatility in a drop-in-ready package, making it an excellent choice for builders looking to run a hard-hitting intermediate cartridge on any standard AR-15 lower.
- Chambered in 300 Blackout — effective with both supersonic and subsonic loads
- 16" barrel provides a balanced mix of velocity and maneuverability
- Free-float rail system eliminates barrel contact for improved accuracy
- Forged 7075-T6 aluminum upper receiver for lightweight, battle-tested strength
- Type III hard-coat anodized finish resists corrosion, wear, and harsh conditions
- MIL-STD compatible — fits any standard mil-spec AR-15 lower receiver
Who This Is For
This upper is ideal for AR-15 enthusiasts — from first-time builders to seasoned shooters — who want a reliable, complete solution for hunting medium game, home defense, or range use with the versatile 300 Blackout cartridge. If you already own an AR-15 lower, this is one of the fastest ways to get into a proven, quality build without the hassle of assembling individual components.
Specifications
| Brand | Radical Firearms |
|---|---|
| Caliber | 300 Blackout (300 BLK) |
| Barrel Length | 16" |
| Upper Receiver Material | Forged 7075-T6 Aluminum |
| Finish | Type III Hard-Coat Anodized, Black |
| Rail System | Free-Float |
| Compatibility | MIL-STD AR-15 Lower Receivers |
| Configuration | Complete Upper (No Lower) |
| Gas System | Mid-Length (inferred) |
| Includes BCG/CH | Verify with retailer |
Frequently Asked Questions
Will this upper fit my existing AR-15 lower receiver?
Yes. This Radical Firearms complete upper is built to MIL-STD specifications and will mate with any standard mil-spec AR-15 lower receiver. No modifications are required — simply pin the upper to your lower and you're ready to go.
Does this upper include a bolt carrier group and charging handle?
Complete upper configurations can vary by manufacturer and SKU. We recommend confirming with our team at Goodland Guns whether a bolt carrier group (BCG) and charging handle are included with this specific upper before purchasing, as some listings ship without them.
Can I shoot suppressed with this 300 Blackout upper?
300 Blackout was specifically designed for suppressed use, and this 16" upper is compatible with standard muzzle devices and suppressors using a 5/8x24 thread pitch (verify muzzle threading with the retailer). For best results when shooting subsonic ammunition suppressed, ensure your suppressor is rated for 300 BLK and that your lower is equipped with an appropriate buffer and spring setup.