This PCC Has No Business being THIS good - The CAR-15 SD

Published on June 19, 2025
Duration: 21:06

The Broad River Tactical CAR-15 SD offers an integrally suppressed MP5SD-like experience on an AR-15 platform. Its ported barrel effectively slows supersonic 9mm rounds to subsonic speeds, eliminating the need for specialized ammunition when using a suppressor. The CMMG Radial Delayed Blowback system provides a soft recoil impulse, making it accurate and hearing-safe for applications like home defense.

Quick Summary

The Broad River Tactical CAR-15 SD uses a ported barrel to slow supersonic 9mm rounds to subsonic speeds, enabling quiet suppressed shooting with standard ammo. It features CMMG's Radial Delayed Blowback for soft recoil and is ideal for home defense.

Chapters

  1. 00:00Intro: CAR-15 SD 9mm PCC
  2. 01:35Chronograph Test: Subsonic Velocity
  3. 03:05Build Specs & MP5SD Style
  4. 06:12Tactical Accessories: Laser Speed M6 TRV
  5. 07:34Suppressor Options: CAT MOB & Wolfman
  6. 12:28Magazine Solutions: Mean Arms EndoMag
  7. 14:17Ballistic Gel Test: G9 Hollow Points
  8. 17:46CMMG Radial Delayed Blowback & Price

Frequently Asked Questions

What makes the CAR-15 SD quiet?

The CAR-15 SD features a ported barrel that bleeds off gas, slowing supersonic 9mm rounds to subsonic speeds. When paired with a suppressor, this significantly reduces the audible report, making it exceptionally quiet.

What is the operating system of the CAR-15 SD?

This firearm utilizes the CMMG Radial Delayed Blowback system. This system is known for providing a softer recoil impulse compared to traditional direct blowback systems found in many other pistol caliber carbines.

Can I use standard 9mm ammo with the CAR-15 SD?

Yes, the CAR-15 SD's ported barrel is designed to slow down standard supersonic 9mm ammunition (like 115gr or 124gr) to subsonic velocities, allowing you to achieve quiet suppressed performance without needing specialized subsonic rounds.

What is the price of the CAR-15 SD upper kit?

The Broad River Tactical CAR-15 SD upper kit is priced at approximately $829. This is considered a high-value proposition for a specialized, integrally suppressed-style firearm built on the AR-15 platform.

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