Archive for the ‘Suppressors’ Category

First Look – USSOCOM’s New Suppressed Upper Receiver Group (SURG) from SIG SAUER

Thursday, August 2nd, 2018

Late last week, the United States Special Operations Command announced they had awarded SIG SAUER a $49 million contract for Suppressed Upper Receiver Groups for the M4A1 weapon.

Here is the first photograph of the SURG in the wild. The SURG components are mounted to a generic AR-style lower receiver.


Based on the SOCOM requirement, SURG includes a 5.56mm NATO upper receiver group (URG) composed of upper receiver, barrel, operating system assembly and bolt/carrier assembly along with a sound suppressor (may be integral with barrel), operators manual and maintenance manual. In addition to the URG itself, candidate systems could include a folding stock if the operating system didn’t require use of the lower receiver extension, buffer and action spring.

As we can see here, SIG went a different direction than most and used an MCX piston driven upper with detachable suppressor and an MCX folding stock. As part of SURG, SOCOM will receive the folding stock and knuckle adapter for use with existing M4A1 lowers. The suppressor is covered with some sort of aramid-based mesh to protect the hand of the operator. When you get to the performance specs below, you’ll understand why this is so significant.

I’m now going to go over some of the requirements for SURG so you can see how SIG (and the other candidates) had to perform to win this solicitation.

SOCOM stipulated that SURG could be no more than 25.5 inches in length but that they preferred a system that was no more than 21.0 inches. The barrel has to be at least 11.5 inches in length and the weapon can’t weigh more than 7.0 pounds, but the preferred weight is just 4.5 pounds. It also needed to be Coyote 498 in color.

The real meat of the requirement is in the suppressor performance. First off, a SURG equipped M4A1 has to be optimized to fire the M855A1 and the MK318 MOD0 / MOD1 cartridges and be able to do so reliably for at least 1200 rounds without lubrication. Obviously, they also didn’t want anything that could vibrate loose. While the suppressor must be rebuildable, only one component of the suppressor has to be serialized but that part had to last the lifetime of an M4A1 lower receiver (125,000 rounds). The rebuildable components need to last at least 15,000 rounds but SOCOM further challenged industry to make them last for 20,000 rounds.

Additionally, a SURG equipped M4A1 shall not exceed 140 dB ten shot average sound pressure level at shooter’s ear during barrel life minimum (15,000 rounds).

In the past I’ve mentioned the so-called SOCOM suppressor torture or stress test. The SURG equipped M4A1 has to withstand at least 6 complete cycles of the firing schedule seen below below using MK318 MOD0 / MOD1 ammunition with SURG allowed cooling to 120°F after each cycle. However, SOCOM was hoping to complete 20 cycles.


The weapon firing MK318 MOD1 for 5 groups of 10 rounds each suppressed, has to average over the 5 groups no more than 1.50 MOA Extreme Spread (ES) beyond the ammunition Lot Acceptance Test (LAT) average ES at 300 yards. Also, it has to maintain a maximum ES Average of 1.50 MOA over LAT using MK318 MOD0 / MOD1 ammunition from 0 to 10,000 rounds fired.

In addition to that stress test, SURG has to prevent operator contact or sustained contact burns from the suppressor (or equivalent) through 1 layer of standard military duty uniform material after firing 210 rounds in 7 minutes at a rate of 1 round every 2 seconds ± 0.2 seconds. A contact burn will be defined as a peak temperature over 160°F in 1 second of contact. A sustained contact burn will be defined as a peak temperature over 160°F in 5 seconds of contact.

These stringent requirements, combining suppression, reliability, accuracy service life, and operator protection were very challenging for industry. It took three tries at bat for the SURG program to finally select a system. In the two earlier attempts, none of the systems could meet all of the program’s objectives. Kudos to SIG for putting together a winning system.

ASA – Raffle for Hudson H9 Pistol & Rugged Obsidian 9 Suppressor Including $200 Transfer Tax

Monday, July 30th, 2018

Ticket Sales end on July 31st @ 11:59pm EDT

Hudson Manufacturing, Rugged Suppressors, and Silencer Shop are teaming up with the ASA to bring you an opportunity to win one of the summer’s hottest (and quietest) setups: a Hudson H9 pistol with their new factory threaded barrel, a Rugged Obsidian 9 modular suppressor and payment of the $200 transfer tax courtesy of Silencer Shop!

As the only organization that’s dedicated to enacting pro-suppressor reform across the country, every dollar raised is another dollar that supports our work. Buy a ticket today and help us fight for your right to protect your hearing!

For full contest rules and to purchase tickets, visit Ticket sales end July 31st at 11:59pm EDT. Drawing will be held August 1 at 5:00pm EST.

The ASA is a 501(c)(6) industry trade association. Contributions or gifts to the American Suppressor Association, including raffle tickets, are not tax deductible.

USSOCOM Awards SIG SAUER $48 Mil for Suppressed Upper Receiver Group

Sunday, July 29th, 2018

The Department of Defense has announced that USOCOM selected SIG SAUER to provide SURG.

Sig Sauer Inc., Newington, New Hampshire, was awarded a $48,000,000 five-year, indefinite-delivery/indefinite-quantity, firm-fixed-price contract for the acquisition of the Suppressed Upper Receiver Group (SURG).  The SURG weapon is an upgrade of the M4A1 lower receiver group in support of U.S. Special Operations Command (USSOCOM) Procurement Division.  Fiscal 2018 procurement funds in the amount of $24,620 are being obligated at the time of award.  The majority of the work will be performed in Newington, New Hampshire, and is expected to be completed by July 2023.  This contract was awarded through full and open competition.  USSOCOM headquarters, MacDill Air Force Base, Florida, is the contracting activity (H92430-18-D-0005).

SURG is a 5.56mm, integrally suppressed upper receiver. Despite assertions to the contrary on other websites, this is not a SIG Rattler kit.

However, there an entirely different program to offer a Personal Defense Weapon upper in .300. Earlier this year, SOCOM purchased a handful of SIG upper receiver systems to inform the requirement. Expect SOCOM to release a solicitation in FY19.

SURG asked industry to keep the handguard cool enough to handle even after firing the SOCOM suppressor torture test with M855A1. Several companies took up the challenge but experienced various issues.

Magpul Shipping 5.5” Suppressor Cover

Thursday, July 12th, 2018

The much anticipated Magpul Suppressor Cover is now shipping.


Constructed of a heat-resistant polymer sleeve overlaid onto a raised stainless steel heat shield that mounts directly to the suppressor body with steel clamps, the Magpul Suppressor Cover – 5.5” minimizes heat transfer to keep external cover temperatures up to 1000 degrees F cooler than the surface of the suppressor and allows cooling airflow across the can. Additionally, it serves as an enhanced thermal insulator and signature reduction device, significantly mitigating mirage distortions to the shooter’s sight picture, reducing the likelihood of impact damage to the suppressor body, and lessening the chance of accidental heat-related injury or damage to personnel or equipment during weapon firing and cool down. Optimized for 1.5” outer diameter round suppressors with a body length of approximately 5.5” (not including attachment hardware / interface) such as the Surefire SOCOM556-RC2. Other lengths are in the works and are coming soon.


· Extreme temperature protection that mitigates internal suppressor temperatures to safe levels
· Minimizes retained heat, allowing faster cooling than any other suppressor cover technology
· Reduces thermal signature of host firearm
· Mitigates mirage effects in sight picture
· Two stainless steel clamps provide a strong, rigid and reliable interface capable of sustained firing sessions and rough handling
· High temp polymer sleeve withstands brutal suppressor temperatures during extended periods of firing without deterioration
· High strength corrosion resistant stainless steel heat shield


· Weight: 9.6oz
· Outer Diameter (OD): 2.5″
· Made in USA

Get yours at

Warren Innovative Technologies

Wednesday, June 20th, 2018

New from Warren Innovative Technologies is the Strap Wrench Adapter for Dead Air Wolf-9SD/Ghost suppressor mounts.

The Dead Air Wolf-9SD/Ghost Mount Strap Wrench Adapter allows the use of two strap wrenches to be used in opposite directions without damaging the finish on any of the suppressor’s components. So far, they’ve been unable to break one of these adapters. Strap wrenches are sold separately in finer hardware stores.

Each adapter is $20 shipped when purchased by itself and $15 when purchased with a $35 Mount Wrench.

Private message them on Facebook for ordering details.

OSS Introduces Two New HELIX-QD Suppressors

Thursday, May 3rd, 2018

Millcreek UT – OSS Suppressors LLC is proud to announce two new additions to their popular HELIX-QD suppressor line – the HX-QD 556 and HX-QD 762 Ti.

“Our new Helix-QD (Quick Disconnect) line was introduced only a couple months ago and the response from dealers and customers has been outstanding” said John Spurrier, CEO of OSS Suppressors. “One of the many advantages of our new one-piece Flow-Through™ design is that our engineers and designers are able to accelerate new

product development, design and testing.”

The newest additions to the line are:

HX-QD 556:  An extremely rugged suppressor, the HX-QD 556 delivers hearing safe mid 130s dB performance, has no barrel length restrictions, is full-auto rated, and easily passes the USSOCOM Reliability Stress Test – it’s the ideal suppressor for all 5.56 rifles.”   MSRP is $899.  Available 7/18.

HX-QD 762 Ti: A lightweight and durable multi-caliber suppressor, the HX-QD 762 Ti is built with a combination of Grade 5 Titanium and heat treated 17-4 stainless steel. It delivers superior accuracy and repeatability, hearing safe 136-139 dB performance, is full-auto rated on 5.56 and cross-platform compatible on 5.56 up to .300 WM– the one to have when every ounce counts.  MSRP is $1,299. Available 9/18.

“Our two new HX-QD suppressors deliver the unmatched benefits of OSS’s patented Flow-Through technology and meet the needs of those customers who’ve been asking for more options and price points since the HELIX-QD line launched in January,” said

Chris Estadt, VP of Marketing and Sales. “With our HX-QD Torque Lock System (TLS), hearing safe sound suppression, and full-auto ratings, the new 556 and 762 Ti models offer superior performance, modularity and value.”

See the complete line of HELIX-QD suppressors at NRA Show – Booth #12042.

American Suppressor Association Media Day

Sunday, March 11th, 2018

THURSDAY, May 3, 2018


o Safety Briefing: 2:00pm – 2:15pm

o Suppressor Demonstration & Shoot: 2:15pm – 5:00pm

o Range Location: Elm Fork Shooting Sports

10751 Luna Rd., Dallas, TX 75220


The American Suppressor Association cordially invites you to attend our Fifth Annual Media Day. Located just 20 minutes from the Kay Bailey Hutchison Convention Center, home of this year’s NRA Annual Meeting, this live fire event serves as an opportunity for the ASA to discuss current legislative efforts, for our sponsors to showcase new products, and for the ASA to recognize individuals and organizations who have made an exceptional impact on pro-suppressor advocacy. Open only to guests of ASA, our sponsors, and members of the media. RSVPs are requested.

Firearms, Suppressors, and Ammo will be provided.


Enforce Tac 18 – Ase Utra

Thursday, March 8th, 2018

Finnish suppressor manufacturer Ase Utra displayed their new training suppressor. It’s a Denny device and can be used for non-blank firing training such as combatives or non-firing rehearsals. This sample has been painted but they are working on a Cerakote version.

If you need a blank firing device, Ase Utra offers this model from their partner Thales which was developed for use with the Austeyr and has been adapted to their muzzle attachment.