M-LOK – 3-Piece Rail and Sling Combo – 3-Slot, 7-Slot, QD Mount – Black

Sylvan Arms

$117.99

M-LOK – 3-Piece Rail and Sling Combo – 3-Slot, 7-Slot, QD Mount – Black


The Sylvan Arms RC300 is the full quick-detach combo pack for M-LOK setups, combining a 3-slot Picatinny mount, a 7-slot Picatinny mount, and a QD sling mount in one package. It is built from black anodized 6061-T6 aluminum and is meant for fast attachment and removal without tools.

This is the all-in-one option for guys who want both sling flexibility and accessory mounting without piecing together parts one regret at a time.


Fitment

  • Fits M-LOK compatible rails and handguards

What it does

This combo gives you both rail mounting space and a QD sling attachment point in one package, making it easier to build out a more adaptable rifle setup.


Why it’s worth it

For a guy building one rifle and wanting multiple mounting options right out of the gate, the pack makes sense from a function standpoint. It is cleaner than piecing together separate parts if the price is right.


Specs

  • Brand: Sylvan Arms
  • RSR SKU: SYRC300
  • Model: RC300
  • Product type: 3-piece rail and sling combo
  • Compatibility: M-LOK
  • Includes: QDR100 3-slot rail, QDR300 7-slot rail, QDR200 sling mount
  • Material: 6061-T6 aluminum
  • Finish: Black anodize
  • Weight: QDR100 0.8 oz, QDR200 1 oz, QDR300 1.4 oz

What’s included

  • 3-slot Picatinny-to-M-LOK rail mount
  • 7-slot Picatinny-to-M-LOK rail mount
  • QD sling mount

Install notes

Attach each component to compatible M-LOK slots and verify lockup before use. Plan placement around your grip, light, sling routing, and support-hand space so you do not build yourself into a stupid corner.


Verify before you buy

Verify your handguard is M-LOK and that you want the full 3-piece combo, not just a rail section or sling mount by itself.


⚠ Trademark & Compatibility Disclaimer

IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by any manufacturer mentioned. All trademarks are the property of their respective owners and are used only to identify compatibility or fitment.

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