Magpul MAG517-BLK MS1/MS3 QD Sling Adapter - Steel, Black Finish, Polymer Hardware, 1.25" Nylon Webbing, Two to One-Point for AR-15/M4/M16/AK-Platform/AKM

The Magpul MAG517-BLK MS1/MS3 QD Sling Adapter is a convertible sling system designed to let you switch between one-point and two-point carry on AR-15, M4, M16, and AK-platform rifles. Built from manganese-phosphate finished steel with reinforced polymer hardware, this adapter pairs with the MS1 Sling and an optional Paraclip to give you the flexibility hunters, range shooters, and tactical users need for different shooting scenarios. Made in the USA, it combines durability with practical modularity.

The heavy-duty push-button QD swivel attachment at the rear works with any receiver, end plate, or buttstock equipped with a standard push-button QD socket—a common feature on modern AR builds and many AK-pattern rifles. The front attachment point accepts Magpul RSA, MSA, and Forward Sling Mounts, as well as standard QD swivels and snap-hook style sling loops, giving you real choice in how you configure your setup. The custom 1.25-inch nylon webbing is durable, wear-resistant, and treated to reduce infrared signature without sacrificing comfort during extended carry.

Whether you're hunting in variable terrain, running a tactical course, or simply want the ability to transition from one-point to two-point without fumbling with hardware, this adapter solves the conversion problem elegantly. The Paraclip shackle provides quick-release capability in an emergency, and the reinforced polymer hardware keeps weight down without compromising strength. If your rifle already has QD sockets—or if you're planning to add them—this is a solid foundation for a sling system that works how you work.

Key Features

• Heavy-duty manganese-phosphate finished steel QD swivel for one-point attachment
• Converts between one-point and two-point configuration with optional Paraclip
• Compatible with AR-15, M4, M16, M-LOK, and AK-pattern platforms
• Durable 1.25-inch nylon webbing with infrared treatment
• Works with Magpul RSA, MSA, Forward Sling Mounts, and standard snap-hook sling loops
• Reinforced polymer hardware reduces weight while maintaining durability
• Made in the USA

Specifications

Frequently Asked Questions

What rifles and platforms is this sling adapter compatible with?

The MAG517 works with AR-15, M4, M16, and AK-pattern rifles that have push-button QD sockets. The rear attachment uses the QD swivel, while the front can attach to Magpul RSA, MSA, and Forward Sling Mounts, as well as standard snap-hook style sling loops with an inner diameter of at least 3/8" (9/16" or larger recommended for full range of motion).

How do I convert this from one-point to two-point?

Use this adapter with the MS1 Sling and an optional Paraclip shackle. The Paraclip allows easy transition between configurations and provides quick-release capability when needed. The rear QD swivel stays in place; the front attachment point switches between one-point (Paraclip removed) and two-point (Paraclip attached to front sling loops).

What mounting options does the front have?

The front can attach to Magpul RSA, MSA, and Forward Sling Mounts, standard QD sling swivels, or snap-hook style sling loops. Snap-hook loops need an inner diameter of at least 3/8", though 9/16" or larger is recommended to allow the Paraclip full range of motion.

Is the webbing infrared treated?

Yes. The 1.25-inch nylon webbing is treated to reduce infrared signature, which can be valuable in tactical or low-light hunting situations while maintaining durability and comfort during carry.