Magpul MAG519-BLK MS1 MS4 Adapter MAG519BLK

The Magpul MAG519-BLK MS1 MS4 Adapter is built for shooters who need a strong, seamless way to convert their sling setup without fuss or failure. Designed to pair with the MS1 Sling and a QD Sling Swivel, this adapter lets you switch between one-point and two-point configurations with confidence, giving you the flexibility to run your rifle exactly the way the situation demands. It’s engineered for rugged dependability, clean transitions, and long service life in the field.
Magpul constructs the MS1 MS4 Adapter from QPQ salt bath nitride and manganese phosphate finished steel, providing exceptional corrosion resistance and battlefield-ready durability. The hardware is paired with custom 1-1/4-inch webbing that’s built to endure abrasion, wet weather, and hard use without fraying or losing integrity. Its snag-free design keeps the sling moving smoothly across gear, clothing, and rifle components, allowing quick adjustments without catching on anything during high-stress movements.
Rear attachment is straightforward and works with receivers, end plates, and buttstocks equipped with a push-button QD socket, making one-point configuration simple and secure. For two-point mode, the front interface uses an optional QD Sling Swivel and is compatible with the Magpul RSA-QD, Forward Sling Mounts, and nearly all other push-button QD sockets on the market. This broad compatibility ensures the adapter integrates cleanly with most modern rifle setups, whether you're running a lightweight carbine or a fully outfitted duty rifle.
Every element of the MAG519-BLK is designed for real-world practicality—strong where it needs strength, smooth where it must move freely, and dependable under the conditions serious shooters face. And like all Magpul gear, this adapter is proudly made in the USA, reflecting a commitment to quality manufacturing and long-lasting performance.

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