*** AMENDMENT 0001 : Effective 02 JUNE 2026, the Government has issued Amendment 0001 to RFOP BREECH LOCK to incorporate the QA log and update the part number on NSN: 1005-01-536-5643 from Part Number: 13028639 to Part Number: 13926848. Additionally, Update the part number on NSN: 1005-01-629-5684 from 130227998 to 13027998. All previous versions of the RFOP are hereby void. Offerors are required to base their proposals on the amended RFOP document attached to this notice. All other terms and conditions remain unchanged.*** 1. INTRODUCTION: Army Contracting Command - Detroit Arsenal (ACC-DTA) is issuing this Request for Order Proposal (RFOP) under the Basic Ordering Agreement Sustainment Track (BOAST) program. This is a Total Small Business Set-Aside competitive action intended for all active BOAST Basic Ordering Agreement (BOA) holders. To be eligible for award, a vendor must have a fully executed BOA in place by the closing date and time specified in the attached RFOP. The Government intends to award a Firm-Fixed-Price Order for the following requirement: 2. REQUIREMENT DETAILS: Noun:BREECH LOCK, SELECTOR NSN: 1005-01-629-5635, 1005-01-629-5635, 1005-01-536-5640, 1005-01-536-5643, 1005-01-629-6807, 1005-01-629-5685, 1005-01-629-6801, 1005-01-629-5688, 1005-01-629-5684,1005-01-629-7417,1005-01-629-6783. Part Number: 13027998-2130286431302863913027998-813027998-613027998-413027998-513022799813027998-313027998-7 Quantity: 1994 Option: 1994 Inspection/Acceptance: Origin FOB: Destination NAICS: 336412 3. EXPORT CONTROL NOTICE: [INSTRUCTION: Keep this section ONLY if the item is export-controlled. Delete if not applicable.] THIS ITEM IS EXPORT CONTROLLED. The solicitation will incorporate an Export Controlled Technical Data Package (TDP). Access to the TDP will require vendors to be certified in the Joint Certification Program (JCP). If you are not registered in the JCP, or your certification has expired, please mail DD Form 2345 to: U.S./Canada Joint Certification Office Defense Logistics Information Service Federal Center, 74 Washington Ave., North Battle Creek, MI USA 49037-3084 4. SOLICITATION & AMENDMENT INFORMATION: This RFOP and any subsequent amendments will be issued electronically via this SAM.gov posting. The Government is under no obligation to maintain a vendor mailing list. It is incumbent upon any interested parties to periodically access this notice to obtain any amendments which may be issued. Failure to obtain and respond to any amendments prior to the closing date may render your proposal unacceptable. 5. PROPOSAL INSTRUCTIONS & EVALUATION CRITERIA: All instructions for proposal submission, evaluation criteria (e.g., Price Only, LPTA, or Tradeoff), and order-specific clauses are contained entirely within the attached BOAST RFOP document. Offerors shall review the attached RFOP in its entirety to prepare their proposal. 6. NOTICE TO VENDORS WITHOUT A BOAST BOA: If your company is interested in competing for this or futur…