SIONICS S-15 ARCA RM-Lok Handguard – 14.125″

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SIONICS S-15 ARCA RM-Lok Handguard - 14.125"
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Dowel Pin

SIONICS S-15 ARCA RM-Lok Handguard – 14.125″

$33995

The brand new SIONICS Arca compatible Handguard  – SIONICS S-15 RM-LOK ARCA Edition

SIONICS, in collaboration with ICON Defense, has redefined handguard attachment with the brand new RM-LOK system. This patent-pending innovation employs three independent CAMs that precisely interlock with the titanium barrel nut’s proprietary RM grooves. The result? Unparalleled rigidity and reliability. RM-LOK delivers an exceptionally strong clamping force, effectively locking the handguard to the barrel nut while simultaneously eliminating any play by driving it firmly against the upper receiver. Experience the pinnacle of handguard stability.

25 in stock

Estimated Shipping Date March 20, 2025 - March 25, 2025
SKU: S15-A-14 Category: Product ID: 27803

Description

The brand new SIONICS Arca compatible Handguard  – SIONICS S-15 RM-LOK ARCA Edition

SIONICS in partnership with ICON Defense have engineered the most rigid, robust, and reliable handguard attachment system on the market. Our revolutionary, patent-pending RM-LOK system utilizes three independent CAMS that precisely engage with the Rotating Mechanism (RM) grooves in our proprietary titanium barrel nut. This system creates an ultra-secure clamp, locking the rail onto the barrel nut with extreme force and precision, while simultaneously driving the handguard rearward toward the upper receiver to ensure maximum engagement and rigidity.

Unmatched Stability. Uncompromised Performance.
  • Zero Shift. The RM-LOK system virtually eliminates barrel-to-handguard flex, ensuring your zero stays rock-solid, even in the most punishing conditions. Whether you are loading into a bipod, tripod, or barricade, rest assured you will see ZERO POI shift.
  • No Slippage. No Failures. Designed for absolute durability, this system won’t slide forward under stress, impact, or extreme use.
  • ARCA compatible – We worked with Really Right Stuff SOAR to insure that our handguards will be compatible with the absolute best in tripod technology; the RRS-Lock™ system. Don’t have an RRS-Lock™ head? Not to worry, our ARCA is compatible with all ARCA interfaces.
  • Titanium Barrel nut – Our Titanium barrel nuts offer a significant performance upgrade. Their superior strength and rigidity, coupled with enhanced heat dissipation compared to aluminum, provide a more robust and thermally efficient solution. Plus, you’ll benefit from a noticeable weight reduction.
  • Steel QD Inserts – Anti-Rotational steel QD inserts insure long lasting engagement with your sling mounting solutions.
  • Unmatched Anti-Rotation – Engineered for maximum stability, the extrusion features integrated anti-rotation tabs and a supplemental dowel pin interface for compatible upper receivers, eliminating rotational movement.
  • Simple barrel nut tooling – We engineered the barrel nut for compatibility with standard castle nut wrenches, eliminating the need for costly, proprietary tools.
Handguard Specifications

Material: 6061 T6 Aluminum
Finish: Type 3 Hard Coat Anodize – SIONICS Black
Weight: 20.5oz – Assembled
Diameters: ID 1.39″ & OD 1.61″

RM-Lok Titanium Barrel Nut Specifications

Material: Titanium
Finish: Raw
Weight: 2.2oz
Tooling: Standard Castle Nut Wrench for barrel nut (Included) & T27 for hardware (included)

 

Additional information

Length

14.125"
Weight

20.5oz
Coating

Type 3 Hard Coat Anodize – SIONICS Black
Material

6061 T6 Aluminum

SIONICS WARRANTY

The SIONICS Warranty

All SIONICS Weapon Systems Firearms, Receivers and Parts are manufactured for a Lifetime of Hard Use. The definition of a Warranty is a Guarantee from a manufacturer that a defective product will be repaired or replaced.

SIONICS Parts Warranty (Barrels, BCGs, LPKs etc.)

All SIONICS Weapon Systems Parts carry our Guarantee against defects in original materials and workmanship. If any SIONICS product shows evidence of such defects, we will fix, repair, or replace your product with that of an equal value product. SIONICS Weapon Systems does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products. 

WARRANTY PROCESSING INSTRUCTIONS

Step 1:

Call 520.396.3460 (Monday – Thursday 7:00 – 17:00 MST) and speak with one of our Excellent SIONICS staff to begin the troubleshooting process of your product. If deemed necessary you will then obtain an RMA# (Return Merchandise Authorization) to initiate the warranty claim. Outside of business hours please email us at warranty@sionicsweaponsystems.com

Step 2:

Once established that your item should return to SIONICS for further inspection, you will need to ship your defective/non-working item.

Return the item to our facility:
Make sure your assigned RMA# is clearly displayed on the outside of all return packages. This is necessary to match each package to the correct warranty claim. In addition please include a document listing your RMA#, Name, Phone Number as well as email address.

ATTN: Warranty Department
SIONICS Weapon Systems
4639 E. 1st St
Tucson, Arizona 85711

Step 3:

Our team here at SIONICS will work quickly to process your claim. Once your item is received, we will inspect and test within one business day. If the item is deemed defective, we will communicate back to you on your claim with the appropriate plan for repair or replacement.

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