VISM M-LOK® Single Slot Rubber Rail Covers – 18 Pack (Low Profile)

The VISM M-LOK® Single Slot Rubber Rail Covers by NcSTAR are designed to improve comfort, grip, and heat insulation on M-LOK handguards without adding unnecessary bulk. These low-profile covers install directly into individual M-LOK slots, smoothing sharp edges and protecting your support hand from heat generated during sustained firing.

Constructed from heat-resistant textured rubber, each cover provides a secure, non-slip surface while maintaining a slim footprint that won’t interfere with accessory placement. The hinged snap-in design allows for fast, tool-less installation. Simply lift the rear section, slide the front shoe into the M-LOK slot, and press down to lock the cover in place.

Ideal for AR-style rifles, PCCs, and modern sporting builds, these covers enhance handling and thermal protection while preserving the clean, modular nature of your M-LOK rail system. Each pack includes 18 individual slot covers, giving you flexible coverage options across your handguard.

✅ Key Features & Benefits

• Improves grip and comfort on M-LOK handguards

• Insulates hands from barrel heat during sustained fire

• Low-profile design adds minimal bulk

• Textured rubber surface for positive control

• Tool-less hinged snap-in installation

• Does not block accessory mounting

• Ideal for AR-15, AR-10, and modern M-LOK platforms

⚙️ Specifications

• Brand: NcSTAR

• Product Line: VISM

• Product Type: M-LOK® Single Slot Rail Covers

• Material: Heat-resistant rubber

• Length (per cover): 0.8"

• Height Added: ~0.15" above handguard surface

• Mounting System: M-LOK®

• Installation: Tool-less, hinged snap-in

• Quantity: 18 covers per pack

• Patent: US Patent No. 9,581,412

Most in-stock items ship within 3–4 business days.

If an item shows Backorder or Special Order, extra vendor lead time applies.

To ensure delivery before Christmas, place your order by the following dates (includes fulfillment time):

USPS Ground Advantage – Order by Dec 13

USPS Priority Mail – Order by Dec 14

USPS Priority Mail Express – Order by Dec 16

UPS 3-Day Select – Order by Dec 15

UPS 2-Day Air – Order by Dec 18

UPS Next Day Air – Order by Dec 19

International customers: Order by Nov 28 – Dec 5, depending on service and location.

For full vendor lead times and detailed shipping info, read the complete Holiday Buyer’s Guide →

Most in-stock items ship within 3 business days.

Special order items are typically processed within 14 business days (excluding weekends and holidays).

Custom items may require additional time depending on production schedules.

If you’d like to receive your order sooner, please select an expedited shipping option at checkout.

Some products ship directly from the manufacturer, and an equivalent carrier or service level will be chosen to match your selected shipping speed.

Shipping delays caused by carriers are outside our control, but we’ll always help track updates.

See our Shipping Policy for details.

Returns are accepted within 14 days for items that are unused, unopened, and in original packaging with no damage.

A restocking fee applies, but it may be partially waived if store credit is selected instead of a refund to the original payment method.

Custom builds, sale items, and hazardous goods are final sale.

Warranty Coverage: Manufacturer warranties apply to all standard products. Any defects, malfunctions, or performance issues are handled directly by the manufacturer per their terms.

HR Tactical Innovations covers a Fitment & Functionality Guarantee on all custom or modified items — if a verified production error occurs, we’ll replace the item.

View our Refund Policy for full details.

We ship worldwide to Canada, Mexico, Europe, Asia, and Oceania, including:

🇨🇭 Switzerland • 🇨🇿 Czechia • 🇩🇪 Germany • 🇩🇰 Denmark • 🇪🇸 Spain • 🇫🇮 Finland • 🇫🇷 France • 🇬🇧 United Kingdom • 🇭🇰 Hong Kong SAR • 🇮🇪 Ireland • 🇮🇹 Italy • 🇯🇵 Japan • 🇰🇷 South Korea • 🇲🇾 Malaysia • 🇳🇱 Netherlands • 🇳🇴 Norway • 🇵🇱 Poland • 🇵🇹 Portugal • 🇸🇪 Sweden • 🇸🇬 Singapore • 🇦🇺 Australia • 🇳🇿 New Zealand • 🇦🇪 UAE and more.

Transit averages 2–4 weeks depending on customs clearance. We are not responsible for customs delays. Reduced transit times are only available through expedited shipping options.

Import duties, VAT, and taxes are not included in your order total and must be paid by the recipient.

If a package is rejected, unclaimed, or returned due to unpaid duties, an incorrect address, or failure to collect, it will be handled under our Refund Policy. Shipping costs are non-refundable in these cases.

Pressurized or restricted items ship ground only where permitted.

Questions? Contact ops@hrtacticalin.com before checkout.