Magpul RSA Rail Sling Attachment

The Magpul RSA is a steel fixed-loop sling mount that clamps to any MIL-STD 1913 Picatinny rail section.

The original rail sling attachment — a steel fixed-loop sling point built to outlast hard use.

The Magpul RSA (MAG502) is a rugged, steel-bodied sling attachment that clamps to any MIL-STD 1913 Picatinny rail and presents a fixed loop compatible with both snap-hook slings and clip-in swivels, including the Magpul Paraclip. Where polymer sling points flex and aluminium loops wear oval, the RSA's steel construction takes years of loaded carry without complaint.

Its genius is its simplicity: no bearings, no buttons, nothing to fail. Mount it to a top, side or lower rail section to set the sling angle that suits your carry — the loop's geometry keeps webbing and hooks captive and quiet. For duty rifles, trainers and any gun that gets slung more than it gets shot, the RSA is the fit-and-forget answer.

Why shooters choose the RSA

• All-steel construction — genuinely hard-use rated
• Universal loop interface — takes hooks, loops and Paraclip slings
• Zero moving parts — nothing to wear, jam or release accidentally
• Mounts to any 1913 rail — set your sling angle precisely

What the RSA fits

Clamps to any 1913 Picatinny rail section, so a handguard rail or a short rail panel is all it needs — leave enough clear rail for the clamp body once your lights and covers are accounted for. An M-LOK-only handguard would need a rail section adding first. It takes looped slings, snap hooks and QD swivel adapters, and pairs naturally with the Magpul MS3 GEN2's Paraclip. Seat it against a rail slot so recoil cannot walk it forward.

Specifications

Fit it once, forget it forever. Order the Magpul RSA today — in stock at Xtreme Tactical Gun Parts with £5 tracked UK delivery in 7–10 business days.

Explore more: Rifle Slings & Sling Mounts, AR-15 Parts & Accessories or browse all Magpul.