The Magpul MS1/MS4 Adapter in Black (brand part no. MAG519-BLK, Model MS1) combines with the Magpul MS1 Sling to extend the two-to-one-point convertibility Magpul built into the MS1 system to a dual QD sling setup matching the MS4. It uses the same durable steel and reinforced polymer hardware found across Magpul’s MS1 adapter lineup.

Key Specifications

• Combines with the MS1 Sling for two-to-one-point convertibility on an MS4-style setup.
• Hardware: durable steel and reinforced polymer.
• Finished in Black.

Frequently Asked Questions

Does this adapter work without the MS1 Sling? No, it’s designed to pair with the Magpul MS1 Sling.

How is this different from the MS1/MS3 adapter? This version is built to match the dual-QD MS4 sling configuration, while the MS1/MS3 adapter matches the single-QD MS3 setup.

Buy the Magpul MS1/MS4 Adapter

Add MS4-style convertibility to your MS1 sling with a Magpul adapter from our slings lineup. Order it from our Lubbock, Texas gun shop for fast, direct shipping.