Marine Corps Systems Command has published their intent to solicit and negotiate with only one source, specifically Knights Armament Co to purchase 5.56mm Small Arms Suppressors to be used on the M27 Infantry Automatic Rifle (IAR), M4 Carbine and M4A1 Close Quarter Battle Weapon. The Marines plan to field the KAC NT-4 to satisfy their requirement for close combat forces.

During last year’s NDIA Armaments Symposium, the Corps listed suppressors as a priority for their Squad Small Arms Capabilities.

In 2016 and 2017 the 1st and 2nd Marine Divisions conducted experimentation utilizing an unspecified number of KAC suppressors from Joint Operational formerly issued to SOF. In 2017, the Marines issued a Sources Sought Notice to Industry for commercially available suppressors.

This planned purchase will supplement those already on hand to fulfill their fielding plan. However, this isn’t exactly the latest in suppressor technology.
On the plus side, it’s got an NSN: 1005-01-437-0324 which was issued by US Special Operations Command. Despite being around since 1998, it’s a workhorse, currently in use with loads of federal and local law enforcement agencies. Plus, it has already been fielded on the M38 Squad Designated Marksman Rifle which is an M27 IAR fitted with a Leupold TS-30A2 Mark 4 MR/T optic.

All of that sounds great right? Here’s where they lose me. The crux of their argument for sole sourcing the NT-4 isn’t that it has an NSN, not that they already have some. Instead, they push its compatibility with Bayonets, Collimators, Boresights and Blank Firing Adapters.
The KAC Small Arms Suppressor will enable the USMC to continue to use their existing bayonets, as well as their existing Small Arms Collimators (SAC), Laser Boresights (LBS), and Blank Firing Adapters (BFA), all of which are critical to accuracy and lethality in both training and combat. These items are interoperable with the current Small Arms Suppressor.
Since this a notice of intent, other companies can still submit (see SAMS for details) if they believe they meet these requirements.




















































































































