Lancer Systems built its reputation on components: carbon fiber handguards, the L5AWM magazine line, and high-end barrel blanks. The new .300 Blackout lineup is the company's first pass at complete, ready-to-shoot firearms outside 5.56, and it went straight for the cartridge that benefits most from a purpose-built host. Both guns are assembled around the L15 lower with an interchangeable, mission-adaptable magwell, an ambidextrous bolt release, and an oversized magazine release button.

The choice of .300 Blackout is not an accident. The cartridge was designed to run subsonic and suppressed out of short barrels, and Lancer leaned into that hard. Rather than ship a generic carbine and let the buyer sort out gas tuning, every part on these guns points at one job: quiet, reliable cycling with a can attached. For the full breakdown of why the round works the way it does, see our .300 Blackout guide.

The folding pistol is the headline gun. It pairs a 9-inch Faxon Match Series Gunner barrel with a 7.5-inch LCH5 Gen2 carbon fiber M-LOK handguard, and a LAW Tactical folding stock adapter behind an SB Tactical SBA5 brace lets the whole package fold for transport and storage. Nine inches is the efficiency sweet spot for .300 Blackout: both subsonic and supersonic loads burn their powder before the bullet leaves the muzzle, so you lose almost nothing to the short barrel while gaining a compact, suppressor- friendly package.

Controls are top-shelf. A Radian Raptor SD ambidextrous charging handle, a Radian Talon ambi safety, and a BCM Gunfighter grip come standard, and the Superlative Arms adjustable gas block lets you dial the gas down once a can goes on. The gun ships with one 20-round and one 30-round Lancer L5AWM .300 BLK magazine. At $2,499.99 it is priced as a finished system, not a parts kit. If you want to see how a 9-inch host stacks up against a 7.5-inch PDW or a longer barrel, our best .300 Blackout barrels guide covers the gas-system math behind each length.

The Patrol Rifle is the no-NFA option. A 16-inch Rosco Bloodline barrel with a 1:8 twist and nitride finish keeps it a standard Title I rifle while still stabilizing the heavy subsonic projectiles .300 Blackout shooters favor. It wears a 13-inch LCH5 Gen2 carbon fiber M-LOK handguard with a full top rail and a B5 Bravo stock, and it shares the pistol's Radian Raptor SD charging handle and Radian Talon ambi safety.

The detail that matters most is the gas system. Lancer runs a pistol-length gas port with a modified port size and a Superlative Arms adjustable gas block, the combination that makes a 16-inch .300 Blackout cycle subsonic ammunition without a suppressor and still tame back pressure when one is attached. The rifle ships with a 10-round and a 30-round L5AWM .300 BLK magazine and lists at $1,910. Feed it the right ammunition and you have a genuinely quiet suppressed host; our best .300 Blackout ammo guide ranks the subsonic and supersonic loads worth buying.

A suppressor adds back pressure, and back pressure is what makes a stock direct-impingement gun run dirty, hot, and gassy when you screw a can on. Lancer addressed that at the source. The Superlative Arms adjustable gas block bleeds excess gas forward instead of dumping it into the receiver, so you can tune the gun for suppressed fire and back it off for unsuppressed shooting. The Radian Raptor SD charging handle seals and vents the gas that still makes it back, keeping it out of the shooter's face.

Both barrels are threaded and ship with an A2 flash hider, which is a placeholder for the muzzle device or suppressor mount most buyers will install. The .300 Blackout cartridge does the rest: a 220-grain subsonic load out of a 9-inch barrel behind a quality can is one of the quietest semi-auto setups you can build short of an integrally suppressed rifle. Spec a build around these hosts in our rifle builder or browse threaded barrels and cans in the catalog.

Lancer's move into complete firearms makes sense precisely because .300 Blackout rewards integration. The parts these guns ship with, Faxon and Rosco barrels, Radian controls, a Superlative Arms adjustable gas block, and Lancer's own carbon handguards, are exactly what an experienced builder would spec for a suppressed .300 BLK host. Buying them assembled and gas-tuned removes the guesswork that trips up first-time .300 Blackout builds, where the wrong gas length turns a quiet, soft- shooting gun into a short-stroking jam machine.

The pricing reflects the component bill, not a markup for the name. At $2,499.99 the folding pistol is the more interesting gun, a compact, fold-flat, suppressor-ready package with the exact 9-inch barrel length the cartridge was built for. The $1,910 Patrol Rifle is the pragmatic pick for buyers who want a no-paperwork 16-inch host that still cycles subs. Either way, budget for a suppressor and the right ammunition before you judge the platform. Start with our .300 Blackout guide and the best .300 Blackout ammo ranking, then build out the rest of the setup.