Thread Adapters, Silencers and More!


300 Blackout Adapter

$49.99

Our 300 Blackout Adapter is for barrels that are threaded 5/8X24. This adapter changes the thread pitch to 1/2X28 so you can use 9mm silencers when shooting 300 Blackout SUBSONIC ammo. This adapter should not be used when firing supersonic 300 Blackout. Knurled steel finished in black oxide. DO NOT USE YOUR PISTON SYSTEM WITH THIS ADAPTER AS IT WILL BREAK THE ADAPTER. You should used a fixed barrel spacer or a fixed barrel mount when using this adapter. Refer to your silencers instruction manual about fixed barrels before you use this adapter.

Add to Cart:

  • Model: 300 Blackout Adapter
  • Shipping Weight: 0.75lbs
  • 9 Units in Stock
  • Manufactured by: XCaliber Firearms LLC


This product was added to our catalog on Tuesday 05 July, 2011.

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