LEADER OF THE 300

AR15 INTEGRAL UPPER ASSEMBLY

MSRP……..$N/A

SPECIFICATIONS

LENGTH OF SUPPRESSOR MODULE: APPROX : 13”

LENGTH OF BARREL/SUPPRESSOR ASSEMBLY: 17.4”

BARREL: LENGTH : 8.5” (not including barrel extension)

APPROXIMATE WEIGHT OF SUPPRESSOR PARTS : 28 OUNCES

DIAMETER OF SUPPRESSOR : 1.625” OD

APPROXIMATE SOUND LEVEL: 119DB TO 124DB AVERAGE

The Liberty Suppressors Leonidas was built from the need for a truly 300 Blk suppressor built specifically to maximize the performance of this cartridge for absolute suppression. The Leonidas balances blow back and ejector port noise with world class suppression to give the user an extremely pleasant shooting experience. The suppressor module is pinned and welded to the barrel making the overall length 17.4” and keeping it a one tax stamp, integrally suppressed firearm. Here at Liberty Suppressors, we truly believe the Leonidas is the king of the 300!

We build this suppressor a couple of different ways for the end user. If they already have a lower they want to use, then we offer just an upper half. We also offer just the suppressor build for the end user that wishes to supply us with a working upper or parts to build on.

The Leonidas Integral is not designed to be dismantled and fired without the entire suppressor assembly installed. INJURY COULD RESULT FROM THIS AND IS NOT RECOMMENDED!

Instructions & Cleaning

Leonidas Cleaning Instructions (click to open)



Package Option A - click to open Leonidas Option A It will come with the following parts: Liberty Leonidas integral suppressor assembly.

Liberty stainless steel special low profile gas block.

Liberty special profile gas tube.

Seekins iRMT-R Billit Upper with forward assist and dust cover.

Seekins 15″ MCSR free floating rail.

BCM Gunfight Medium charging handle.

St. Croix Tactical NiB M16 Bolt/Carrier Group – We use an M16 bolt group for enhanced reliability during cycling with low energy loads (subsonic).

Lilja 1 in 8 twist match – 300BLK barrel (8.5” in length (see note below)) with low profile gas block. Package Option B - click to open Leonidas Option B – Suppressor built on a customer supplied upper receiver assembly. $638 It will come with the following parts: Leonidas integral suppressor assembly

Custom fitted gas tube THESE PARTS WILL NEED TO BE SUPPLIED BY THE CUSTOMER. *A standard footprint flat top upper receiver with trap door and forward assist (if equipped) installed. We no longer install these parts here at our facility during the build process. Please send an upper that is ready to use to prevent clogging the build process with undue work and office processing.

*A LOW PROFILE GAS BLOCK THAT FITS OUR NEEDS AS FOLLOWS: YHM LOW PROFILE GAS BLOCK YHM-9383 BROWNELLS PART #: 100-005-337W

The critical parts of the block are as follows:

The barrel journal is a .750″ barrel journal.

The center to center distance from the centerline of the barrel to the centerline of the gas tube hole is .625″ in design.

*It has been brought to our attention recently that the Novekse guidelines we had previously listed were no longer accurate and therefore have removed the Noveske recommendation from the list of gas blocks.

Seekins 15″ MCSR free floating rail with a minimum ID of 1.8″ (or equivalent ) Any quality 1 in 8 or tighter twist – (8.5″ long) barrel with a diameter behind the gas block journal of at least .800″ in diameter. It also must have a pistol length gas system. The gas block journal must be .750″ sizing and not the other nominal units that are on the market. NOTICE: THIS MEASUREMENT IS NOT INCLUDING THE BARREL EXTENSION. MEASURED WITH THE BARREL EXTENSION, THE BARREL IS 9″ OVERALL FROM THE MUZZLE TO THE BACK OF THE BARREL EXTENSION. PLEASE MAKE SURE YOUR BARREL FITS IN THAT FOOTPRINT! CALL IF YOU HAVE QUESTIONS ABOUT THIS.

*We can not build it on gas piston guns.

These are the main specs that we need to have followed. If you are unsure, please email us at info@libertycans.net and we will work things out with you on a case by case basis. As other makers parts will require additional fitting and will be charged on an hourly basis. FOR CUSTOM BUILDS ON AN HOURLY BASIS OF $80/HR FOR PARTS FITTING, YOU MAY ALSO SEND: Free float hand guard that has a minimum ID of 1.750″

Minimum 8″ barrel with a pistol length gas system that has a gas block journal of .750″

The length of the hand guard can be what ever the client prefers, but we must have the ID to clear the tube. We can not make it with a smaller tube as it will not clear the gas block.We can not build it on gas piston guns. Aftermarket uppers are fine as long as they mate to mil-spec parts on the hand guard. Low profile gas block only, nothing with the sight or pic rails on it, must be a minimalist design. Must have a low profile gas block, to clear the ID of the tubing. It must be no more than .415″ above the barrel or Brownells part # 100-005-337. These are the main specs that we need to have followed. If you are unsure, please email us at info@libertycans.net and we will work things out with you on a case by case basis. Upgrade to a Titanium core! Save almost 1/2 pound of muzzle weight. Only $280 additional

Special note about the Leonidas barrel

We have had a lot of questions about the length of this barrel. Here are the specs we use to measure the barrel.

Any quality 8.5″ barrel with a diameter behind the gas block journal of at least .800″ in diameter. It also must have a pistol length gas system. The gas block journal must be .750″ sizing and not the other nominal units that are on the market.

The barrel must be at least a 1 in 8″ twist and can be tighter if the end user chooses.

THIS MEASUREMENT IS NOT INCLUDING THE BARREL EXTENSION. MEASURED WITH THE BARREL EXTENSION, THE BARREL IS 9″ OVERALL FROM THE MUZZLE TO THE BACK OF THE BARREL EXTENSION. PLEASE MAKE SURE YOUR BARREL FITS IN THAT FOOTPRINT! CALL IF YOU HAVE QUESTIONS ABOUT THIS.

Video (Leonidas Full Auto)

If you would like to mount accessories to your Leonidas rail using the Seekins factory Keymod Rail, we recommended that you first shorten the factory screws so as to not interfere with the rail or contact the tube in any way. The easiest way to do this is to use a Dremel type tool to grind the screws down so that they only protrude to the bottom of the nut face when tightened.

Before

After

Leonidas Metering Data