Msi-Defence Systems US, LLC

MSI-Defence Systems US, LLC is a foreign-owned, for-profit manufacturer of advanced naval defense systems based in Rock Hill, South Carolina. The company specializes in the design, development, and production of sophisticated electro-optic sights, gun mounts, and related precision defense technologies for military applications. Registered in SAM.gov since July 31, 2017, MSI-Defence Systems serves as an original equipment manufacturer and critical supplier to the U.S. Navy, providing specialized components and systems that are integral to surface combatant modernization and maintenance programs.

MSI-Defence Systems has established itself as a prime federal contractor exclusively through Naval Sea Systems Command (NAVSEA) awards, with recent contract activity demonstrating substantial engagement across multiple naval defense system platforms. The company's recent prime contract awards include a definitive firm fixed-price contract valued at $34.6 million awarded on September 30, 2025, for the design, development, and production of MK88 MOD4 Gun Mount systems with completion scheduled for December 30, 2026. Additional significant awards include a cost-plus-fixed-fee delivery order valued at $19.5 million for MK38 MOD4 systems supporting Operation Inherent Resolve, a $7.6 million delivery order for MK 48 MOD 2 Electro-Optic Sensor System spare parts, and a $15.8 million delivery order modification for MSI-DS Electro-Optic Sight systems. The company has also received smaller specialized orders including a $268.6 thousand delivery order for control kits and electronic control unit cards, a $56,058 delivery order for EOSS Power Units and electrical installation kits, a $198,070 purchase order for an EOSS Interface Unit, a $1.57 million delivery order for MK38 Machine Gun System components, and purchases orders for Gun Simulator Kits, backlash test sets, and MK38 MOD 4 Gun Mount Lifting Frames. All contracts have been awarded on a non-set-aside basis, reflecting the company's specialized status and proprietary manufacturing capabilities. The company performs all work at its Rock Hill, South Carolina facility and maintains sole-source relationships with NAVSEA across its contract portfolio.

MSI-Defence Systems holds three active Indefinite Delivery Contracts (IDCs) and one Basic Ordering Agreement (BOA) with the Naval Sea Systems Command. The primary vehicle is a single-award IDC valued at $29.3 million with an ultimate completion date of September 28, 2026, established for the procurement of electro-optic sensor spare parts, evaluation services, and repair efforts supporting the MK 38 MOD 4 Gun Weapon System. This contract encompasses MK 48 MOD 2 Electro-Optical Sight system Lower Replaceable Units, installation kits, spare consumable components, repair efforts, and interface design documentation. Under this IDC, three delivery orders totaling approximately $23.4 million have been issued, including the aforementioned $15.8 million order for MSI-DS Electro-Optic Sight systems, the $7.6 million order for MK 48 MOD 2 EOSS spare parts, and the $56,058 order for power units and installation kits. A single-award Basic Ordering Agreement for MK38 MOD4 Machine Gun Systems, awarded August 24, 2023, extends through June 30, 2028, with a ceiling value of $0.00, indicating flexible pricing through individual delivery orders. Two delivery orders have been issued under this BOA: the $19.5 million order for Operation Inherent Resolve requirements and a $1.57 million order for MK38 Machine Gun System components. Additionally, the company holds a single-award IDC valued at $250,000, awarded September 26, 2022, with a completion date of September 25, 2024, for low complexity test and evaluation services; one delivery order valued at $180,733 has been issued under this contract for test, training, evaluation, and repair services. All IDC and BOA awards are non-set-aside contracts performed at the contractor's Rock Hill facility, reflecting NAVSEA's continued reliance on MSI-Defence Systems' proprietary capabilities and sole-source status for these specialized naval defense technologies.