Magpul Industries RSA Rail Sling Attachment Black MAG502 BLK UPC 873750005249
Product Description
The Magpul Industries RSA (Rail Sling Attachment) in Black (MPN: MAG502-BLK) is an ultra-durable, low-profile forward sling attachment point purpose-built for 1913 Picatinny handguards and quad-rail systems. Designed to provide a forward anchor point for clip-in tactical slings—such as the Magpul MS3, MS3 Single-Point/Two-Point Hybrid, and HK-style snap hooks—the RSA optimizes weapon carry, transitions, and ambidextrous rifle manipulation.
Precision case-hardened and nitrocarburized steel construction ensures exceptional resistance to shock, wear, and environmental corrosion. Its low-profile geometry presents an angled, ergonomic loop profile that places the attachment loop at a natural 45-degree angle, keeping sling hardware close to the handguard to eliminate snag hazards without interfering with support-hand placement or optical sight lines.
Passing rigorous stress-load tests up to 300 lbs of tension, the Magpul RSA attaches securely to any standard MIL-STD-1913 Picatinny or STANAG 4694 rail section using a single steel cross-bolt fastener. Backed by Magpul's legendary American engineering and manufacturing standards, the MAG502-BLK is a time-tested, essential component for hard-use carbine staging.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits all standard MIL-STD-1913 Picatinny and STANAG 4694 quad rails and top rail sections. Purpose-built for Magpul Paraclip, HK-style snap hooks, Mash clips, and 550 paracord loops. (Note: Mounts onto top or side rail channels depending on preferred two-point sling mounting geometry).
- Perform a complete firearm safety check: drop the magazine, pull the charging handle rearward, lock the action open, and visually/physically inspect the chamber to verify zero live rounds are present.
- Loosen the cross-bolt screw on the Magpul RSA using a flathead screwdriver or Hex key until the clamp opens sufficiently to fit over your Picatinny rail.
- Slide the RSA onto the desired top or side 1913 Picatinny rail slot on your handguard.
- Push the RSA forward against the cross-slot wall toward the muzzle to seat the cross-bolt firmly under recoil impulse.
- Tighten the cross-bolt screw to 20 in-lbs using an inch-pound torque wrench.
- Clip your Magpul Paraclip or HK-style hook onto the loop and perform a firm pull test to confirm solid lockup prior to field deployment.
Key Features
- Forward Clip-In Sling Anchor: Purpose-built forward attachment point optimized for Magpul MS3 Paraclips, HK snap hooks, and Mash clips.
- Angled Low-Profile Footprint: 45-degree angled loop geometry sits tight against the rail to minimize snagging and maintain clean optic sight lines.
- Case-Hardened Steel Construction: Precision investment-cast steel chassis tested to withstand over 300 lbs of continuous stress load.
- Melonite / Nitrocarburized Surface Finish: Provides extreme surface hardness, scratch resistance, and environmental corrosion protection.
- Universal 1913 Picatinny Mount: Clamps securely to all MIL-STD-1913 Picatinny and STANAG 4694 rail sections via a single steel fastener.
- Made in the USA: Engineered and manufactured under strict quality standards for professional duty and defensive applications.
Product Specifications
- Brand: Magpul Industries
- Model/Series: RSA (Rail Sling Attachment)
- MPN / SKU: MAG502-BLK
- UPC: 873750005249
- Mounting Interface: MIL-STD-1913 Picatinny / STANAG 4694 Rail
- Sling Hardware Compatibility: Magpul Paraclip, HK Snap Hooks, Mash Clips, Paracord
- Material: Case-Hardened Investment Cast Steel
- Finish / Color: Melonite / Nitrocarburized Matte Black
- Weight: 1.3 oz
- Country of Origin: USA
