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Geissele Automatics

Geissele Automatics Super Modular Rail MK16 Handguard

Regular priceFrom $332.00 USD
Shipping calculated at checkout.

AR-15 M-LOK handguard with 7000-series aluminum construction, full top rail, anti-rotation hardware, barrel nut, and multiple length/color options.

Color:
Length

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⚠️ Sold for sporting and training applications. Customer is responsible for ensuring compliance with all applicable local laws and regulations. See Terms .

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🚚 Shipping & Delivery

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, Exchanges & Warranty

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.

🌍 International Shipping

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. Delays caused by customs or local authorities are outside of our control. Faster transit times may be available through expedited shipping options, though this does not guarantee faster customs processing.

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

Customers are responsible for ensuring that all items ordered comply with their country’s import laws and for obtaining any required permits or documentation prior to purchase. We do not provide guidance on country-specific import requirements.

If a package is rejected, unclaimed, or returned due to unpaid duties, missing documentation, import restrictions, or an incorrect address:

  • The order will be issued as store credit only
  • Original shipping costs are non-refundable
  • Any non-recoverable shipping or return fees may be deducted

If a shipment is lost, seized, or not returned, an insurance claim must be completed before any resolution is provided. If the claim is denied, no refund or credit will be issued.

Pressurized or restricted items will ship via ground services only where permitted.

For more information view our Shipping Policy and our Refund Policy.

Questions? Contact [email protected] before checkout.

🎖️ Military / GovX Discounts

⚙️ Product Details

The Geissele Automatics Super Modular Rail MK16 is a combat-proven AR-15 handguard developed for the URG-I program and adopted by USASOC for its exceptional rigidity, durability, and reliability under hard use.

Precision machined from 7000-series aluminum and finished in a black hardcoat anodizing or Desert Dirt , the MK16 is engineered to maintain zero and resist flex even with heavy accessory loads. The extended-length Geissele barrel nut increases surface contact with the upper receiver, dramatically improving structural integrity compared to standard AR handguards. Integrated anti-rotation tabs and locking set screws ensure the rail stays locked in place under recoil, impacts, and sustained firing.

A full-length Picatinny top rail provides a continuous mounting surface for optics and iron sights, while seven sides of M-LOK slots allow flexible placement of lights, grips, sling mounts, and mission-specific accessories without unnecessary weight.

Available in 9.3″, 10.5″, and 13.5″ lengths, the MK16 supports a wide range of AR-15 configurations, from compact duty carbines to full-length URG-I-style builds.


Available Length Options

  • 9.3″ – Ideal for short-barrel builds and compact setups

  • 10.5″ – Balanced length for carbine and general-purpose rifles

  • 13.5″ – Optimized for mid-length gas systems and URG-I configurations


Key Features

  • Multiple Length Options: 9.3″, 10.5″, and 13.5″

  • Extended-Length Geissele Barrel Nut – Increased rigidity and reduced flex

  • Anti-Rotation Tabs & Set Screws – Prevents rail movement under all conditions

  • Full Picatinny Top Rail – Secure mounting for optics and sights

  • Seven-Sided M-LOK Interface – Maximum accessory flexibility with reduced weight

  • 7000-Series Aluminum Construction – Exceptional strength-to-weight ratio

  • Hardcoat Anodized Finish – Corrosion-resistant and duty-ready

  • Adopted by USASOC – Proven military performance


What’s Included

  • Geissele MK16 Handguard (selected length)

  • Extended-Length Geissele Barrel Nut

  • Anti-Rotation Hardware


Why Choose the MK16?

The MK16 is not a cosmetic rail — it’s a structural upgrade designed for shooters who demand consistency, durability, and real-world performance. Whether you’re cloning a URG-I, building a duty rifle, or assembling a high-end civilian AR-15, the MK16 delivers rock-solid mounting, excellent ergonomics, and proven reliability.

Specifications

  • Model
    Super Modular Rail MK16
  • Material
    7000-Series Aluminum
  • Color / Finish
    Black Hardcoat Anodized, Desert Dirt
  • Platform Compatibility
    Mil-Spec AR
  • Mounting Interface
    M-LOK, Picatinny / 1913

Reviews & Questions

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