The Marine Corps Systems Command intends to solicit and negotiate with only one source under the authority of FAR 6.302-1, Only One Responsible Source (FAR 6302.1 (a)(2)(ii)), based on substantial duplication of costs to the Government that are not expected to be recovered through competition and unacceptable delays in fulfilling the agency’s requirements . The Government intends to solicit and negotiate with Knight’s Armament Company (KAC) for 5.56mm Small Arms Suppressors to be used on the following weapon systems: M27 Infantry Automatic Rifle (IAR), M4 Carbine and M4A1 Close Quarter Battle Weapon. 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. Product Service Code:- 1005 - GUNS, THROUGH 30MM NAICS Code:- 332994 - Small Arms, Ordnance, and Ordnance Accessories Manufacturing Primary point of contact:- William A. Montgomery william.a.montgomery@usmc.mil Secondary point of contact:- Scott Bishop scott.p.bishop@usmc.mil