SURS

Customize and Buy an SURS Today

SURS Overview

Muzzle Devices

Optional Suppressor Ready SureFire Muzzle Devices

Your choice between the SureFire Socom Muzzle Brake and the SureFire WarComp Flash Hider.

SureFire Socom Muzzle Break

The advanced SureFire SFMB 1/2-28 muzzle brake, which fits M4 / M16 weapons and variants with 1/2-28 muzzle threads, greatly reduces both recoil impulse and muzzle rise so that the weapon tracks straight back to keep you on target for faster shot-to-shot recovery. Its patented Impulse Diffusion design minimizes side blast and rear-directed concussion effects. The SFMB-556-1/2-28 also serves as a rock-solid mounting adapter for SureFire SOCOM Series 5.56 mm Fast-Attach® suppressors, the SOCOM556-RC model having placed first in the most extensive and rigorous suppressor testing ever conducted by US Special Operations Command.

SureFire WarComp Flash Hider

The revolutionary SureFire WARCOMP flash hider, which fits M4 / M16 weapons and variants with ½-28 muzzle threads, is the world’s most shootable flash hider.

Precision machined from US Mill-certified heat-treated stainless steel bar stock — including high-precision single-point cut threads for optimum thread interface — the WARCOMP-556-1/2-28 features an Ionbond DLC coating to provide maximum protection under harsh environmental conditions and to facilitate cleaning even after extreme use.

Barrels

Faxon Barrels

Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy.

Quality is imbued into Faxon's barrels from the start. Faxon starts with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges.

View the entire line-up at Faxon Firearms.

Gas System

Optional Superlative Arms Direct Impingement or Piston Adjustable Systems

The Superlative Arms patented “Bleed Off”, direct impingement, gas block and gas piston system for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks. Results:

  • The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler.
  • Reduction of felt recoil.
  • Patented adjustment detent is located outside of the block and therefore no contamination.
  • The gas adjustment screw does not restrict the gas flow; therefore there is no erosion or seizing of the screw / no loss of detent due to carbon build up. Although it is removable, we have added a safety mechanism, which stops you from unintentionally backing the screw all the way out.
  • When using SBR’s and / or suppressors the bleed off port allows the excessive pressure to be exhausted out of the block reducing blow back.

Choose from either an adjustable direct impingement gas system or an adjustable piston gas system by Superlative Arms.

Solid or Clamp On

Choose from either a solid or clamp on style adjustable block for either direct impingement and piston systems.

View the entire line-up at Superlative Arms.

Rails

Geissele MK4, MK8, MK13, and MK14 Super Modular Rails

Super Modular Rail MK13 M-LOK

The MK13 is the latest entry to the Geissele line up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK13 Super Modular Rail is an updated version of the proven Geissele Barrel Nut design, not only providing ease of installation but superior rigidity. The long surface contact of the 2.25” barrel nut interfaces with the receiver creating a platform that can be trusted to be straight and true the entire length of the free float rail. The MK13 is precision machined using 6061-T6 aluminum due to its strength, rigidity and lightweight properties.

Utilizing Magpul’s M-LOK technology in the 3, 6, and 9 o’clock positions and machined-in Picatinny rails at the end allow the end user to customize their rifle and securely mount lights, bipods and other firearm accessories. The Geissele MK13 Super Modular rail is finished in a durable and long lasting Type 3 Anodized Hardcoat available in either Black or Geissele’s DDC finish.

Super Modular Rail MK14 M-LOK

The MK14 is the latest entry to the Geissele line up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK14 Super Modular Rail is an updated version of the proven Geissele Barrel Nut design, not only providing ease of installation but superior rigidity. The long surface contact of the 2.25” barrel nut interfaces with the receiver creating a platform that can be trusted to be straight and true the entire length of the free float rail. The MK14 is 3d precision machined using 6061-T6 Aluminum due to its strong, rigid and lightweight properties.

Utilizing Magpul’s M-LOK technology in the 3, 6, and 9 o’clock positions allow the end user full customization and modularity of their rifle to securely mount lights, bipods and other firearm accessories. The Geissele MK14 Super Modular rail is finished in a durable and long lasting Type 3 Hardcoat Anodized available in either Black or Geissele’s DDC finish.

View the entire line-up at Geissele.

Shipping Times

All firearms are built to order. Please allow up to 4-6 weeks for completion after FFL requirements are completed.

If a delay occurs due to missing, or backordered, parts from a vendor we will notify you by email or phone.

To ensure the fastest processing of your order ensure you have already verified with your FFL the ability to take possession of the firearm for the transfer.

During peak demand periods of the year orders may take an additional 1 - 2 months to process. We will notify you by email or phone if your order is affected.

All orders are charged at the time of placing. This will keep your place in line. If you want to confirm order fulfillment time before purchasing please don't hesitate to contact us.

Your firearm may differ from the images shown.

State Restrictions

Lionadi firearms can be shipped unmodified to all states excluding California, New York, Massachusetts, New Jersey, and Connecticut. Our non-NFA and non-pistol firearms have a California compliant option where we install a Mag Lock as well as include a limited capacity magazine. We do not manufacture an AWB state (NY, NJ, CT, and MA) compliant firearm at this time. We also will not ship an upper receiver (stripped or complete) to an AWB state as they do not have permanently pinned muzzle devices and by default have removable flash hiders.

While we do not offer an AWB compliant firearm or upper direct, you may choose to have your purchase shipped to an FFL not in an AWB state to make the modifications for AWB compliance. We don't provide this service but do have options that can make this process easier for you. If you choose this option it is highly recommended to choose the PSR stock, and SureFire Socom muzzle brake that can be permanently pinned by the intermediary FFL. If we receive a lot of requests for AWB compliant options we may begin offering AWB compliant options in the future.

You are responsible to follow local and state laws. Check https://www.nraila.org/gun-laws/state-gun-laws/ for laws in your state.

Mixed Ammunition

For some firearms we offer the same model in various calibers. ALWAYS ensure you are using the proper ammunition for your firearm. Failure to do so can result is injury, massive damage to the firearm, and perhaps even death.

California's Proposition 65

This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to - www.P65Warnings.ca.gov