The venerable US Army M24 Sniper Weapon System, in service since 1988, has seen numerous attempts at modernization, including the XM24A1, M24A2, M24A3, and M24E1 variants. These largely focused on cartridge upgrades to .300 Winchester Magnum or .338 Lapua Magnum, with only one integrating a chassis system. However, in 2019, the Israeli Defense Force (IDF) pursued a different path to extend the M24's operational lifespan. Partnering with MDT, the IDF embarked on a targeted upgrade program for their M24 SWS, as detailed by rifleshooter.com. This initiative primarily involved swapping the original fiberglass stock for an MDT chassis, integrating an upgraded optic and mount, and adding a muzzle brake. The author's review notes evidence suggesting that rifles undergoing this modernization were also reset and rechambered by armorers.
The core of the IDF's modernization centered on the MDT chassis system, a move designed to address the M24’s limitations in dynamic operational scenarios. While legacy fiberglass stocks perform adequately in static range conditions, the chassis significantly enhances capability for night operations and improvised field positions. Key improvements include full integration for night vision optics, lasers, and illuminators, alongside the critical upgrade to a detachable AICS-style box magazine. The chassis also features a heavy-duty folding stock, adjustable for length-of-pull (LOP), cheekpiece height, and butt plate position, allowing shooters of various sizes to achieve a proper stock weld, especially with larger primary optics.
Testing by rifleshooter.com, using a well-worn M24 SWS, highlighted the MDT chassis's robust design and ergonomic advantages. The author noted the rapid assembly time for the chassis, which simply bolts into the action, securing night vision and scope rails in minutes. The specific MDT chassis utilized is described as one of the beefiest from the company, featuring improvements tailored for rough duty applications. A robust night vision rail attaches with four large screws, incorporating MLOK slots for accessory rails, and alignment pins at the fore-end. Ergonomic enhancements include a removable ambidextrous thumb shelf and a wide trigger guard, allowing gloved operation and debris drainage. The folding stock mechanism, crucial for compact transport, folds against the bolt handle side, preventing excessive width.
Beyond the modularity and ergonomic improvements, the modernization also delivered impressive accuracy gains. While military users typically run factory ammunition, the author’s tests demonstrated sub-MOA performance from the upgraded platform. A 5-round group at 100 yards with Federal Gold Medal Ammunition measured .497″ (.475 MOA). Further refining the rifle's potential with handloaded 175-grain SMKs yielded a best 100-yard group of .209″ (.200 MOA). According to rifleshooter.com, the IDF Modernized M24 program successfully brought the M24 into the modern era, providing night vision compatibility, enhanced ergonomics, broad optic compatibility, and increased precision without requiring a full replacement of the proven weapon system.
