Lmt Monolithic 300 Aac Blackout 16'' Pistol Length Bbl Black

The LMT Monolithic 300 AAC Blackout 16" pistol-length barrel is a precision component engineered for shooters building or upgrading a short-range, subsonic-ready rifle. Built on LMT Defense's monolithic receiver platform, this barrel delivers the compact handling and velocity characteristics that make .300 Blackout ideal for suppressed shooting, close-quarters hunting, and tactical applications where barrel length matters. The 16" length balances portability with adequate dwell time for reliable cycling of both subsonic and supersonic ammunition.

This barrel comes chrome-lined for corrosion resistance and treated with cryogenic processing to extend service life under sustained fire. The 1:7" right-hand twist is optimized for .300 Blackout projectiles across the full spectrum of bullet weights. It's drilled and designed to work directly with LMT's monolithic upper receiver system, using a low-profile gas block and straight gas tube configuration that feeds into an A2 birdcage flash hider—a setup that keeps the profile lean and directs muzzle signature downrange rather than to the sides.

Whether you're building a suppressed precision rifle, a truck gun for hunting, or a versatile home-defense AR, this barrel gives you a field-proven LMT foundation. It's a no-compromise component from a manufacturer known for demanding tolerances and reliable performance in the hands of professionals and serious sport shooters alike.

Key Features

• 16" barrel length optimized for .300 Blackout velocity and handling
• Chrome-lined bore for durability and easy maintenance
• Cryogenically treated for extended service life
• 1:7" right-hand twist for stable bullet flight across subsonic and supersonic loads
• Designed for LMT monolithic receiver platform compatibility
• Low-profile gas block and straight gas tube for compact profile
• A2 birdcage flash hider included

Specifications

Frequently Asked Questions

Is this barrel compatible with standard AR-15 uppers or only LMT monolithic receivers?

This barrel is designed specifically for LMT's monolithic receiver platform and is not compatible with standard AR-15 uppers.

What's the difference between pistol-length and other gas system lengths?

Pistol-length gas systems are the shortest dwell time configuration, cycling the action faster than mid-length or rifle-length tubes. This barrel's pistol-length system is optimized for the .300 Blackout cartridge and contributes to its compact, handy profile.

Does this barrel come with the flash hider?

Yes, the A2 birdcage flash hider is included with this barrel.

Is this barrel suitable for suppressed shooting?

Yes. The .300 Blackout cartridge was designed for suppressed use, and this 16" barrel with its 1:7" twist will reliably cycle both subsonic and supersonic ammunition, making it a solid choice for a suppressed rifle build.