U.S. Marine Corps Raises M27 Rifle Contract Ceiling to $84.6 Million in Sole-Source Deal With H&K

The U.S. Department of Defense has raised the spending ceiling on its contract with Heckler & Koch Defense Inc. for the Marine Corps’ standard-issue M27 Infantry Automatic Rifle by $45.4 million. Modification P00016, announced November 6, lifted the ceiling on the firm-fixed-price, indefinite-delivery/indefinite-quantity contract M67854-18-D-1248 from $39,228,340 to $84,628,299. The contract’s period of performance now runs through April 27, 2028.

Notably, the modification was awarded without competition, under Federal Acquisition Regulation 6.302-1, which permits sole-source awards. The contracting authority is the Marine Corps’ Portfolio Acquisition Executive in Quantico, Virginia. About 70 percent of the work will be performed at Heckler & Koch’s facility in Oberndorf, Germany, with the remaining 30 percent at the company’s Columbus, Georgia plant. No funds were obligated at the time of award; the announcement notes spending will be committed through individual orders issued later, meaning the $84.6 million figure represents purchasing capacity rather than money already spent. The announcement does not specify how many rifles the ceiling could cover.

The M27 is derived from Heckler & Koch’s HK416 and fires 5.56x45mm NATO ammunition through a short-stroke gas-piston system. It entered Marine Corps service in 2011, initially replacing the M249 light machine gun in some infantry roles before becoming the standard rifle issued across Marine rifle platoons. Recent years have added the Squad Common Optic and widely fielded suppressors to the platform, and the Corps announced initial fielding of the Squad Aiming Laser in August 2026.

The increase stands in contrast to the direction the U.S. Army has taken with its own infantry rifle. The Army is fielding the 6.8mm SIG Sauer M7 to replace the M4A1, a rollout already underway in units such as the 25th Infantry Division. The Marine Corps, by extending and expanding its M27 contract, is moving the opposite way — reaffirming its commitment to the existing 5.56mm platform rather than following the Army toward a larger-caliber replacement. In February 2026, Marine Corps spokesperson Lt. Col. Eric Flanagan said the M27 better suits the Corps’ amphibious doctrine and priorities than the rifle the Army selected.

The M27’s history offers partial context for the sole-source award. The Marines selected the rifle in 2008 after an open competition, but a later Marine Corps assessment warned that switching suppliers could trigger significant duplicate costs and delays. That assessment does not directly explain this specific 2026 increase, but the size of the ceiling bump and the contract’s extension through 2028 read as a strong signal that the Corps intends to keep the M27 as its primary infantry rifle for years to come.

The contract’s geographic split is also worth noting: with most of the work performed at the German production line, it confirms that Heckler & Koch’s M27 supply chain remains substantially Europe-based. That reliance on a foreign production facility for a core U.S. infantry weapon occasionally surfaces in supply-security debates, but the Pentagon’s decision to expand the contract on the same footing suggests that balance is not changing in the near term.

Sources

• U.S. Department of Defense, Contract Announcement (M67854-18-D-1248, P00016), November 6, 2026 — the official contract modification announcement. Used for contract value, parties and terms.
• Army Recognition, “Heckler & Koch M27 Rifle Remains Core U.S. Marine Corps Infantry Weapon as Contract Rises to 84.6 Million,” November 9, 2026 — article. Used for context and background.