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Guntec USA

Guntec Air-LOK M-LOK Compression Free Float Handguard

Regular priceFrom $89.95 USD
Shipping calculated at checkout.

M-LOK free-float handguard with compression lock system, 6061-T6 aluminum body, 1.32" internal diameter, barrel nut, and length/color options.

Size
Color:

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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 Air-LOK Series M-LOK Compression Free Floating Handguard is engineered for builders who want maximum rigidity, reduced weight, and a true monolithic top rail without unnecessary bulk. Made in the USA from 6061-T6 aluminum, the Air-LOK uses a compression lock system that slides over a proprietary barrel nut and clamps securely against the receiver using four locking screws.

This design creates a tight, rock-solid fit that resists rotation and flex, while allowing the handguard to sit flush against the upper receiver for a continuous Picatinny top rail. Extensive triangle and diamond skeletonized cuts reduce weight without sacrificing strength, making this an ideal choice for lightweight carbines, SBRs, and competition builds.

With M-LOK slots on three sides, integrated QD sling sockets, and a generous 1.32″ internal diameter, the Air-LOK series balances strength, airflow, and modularity across a wide range of barrel lengths.


Key Features

  • US Made

  • Compression lock free-float design

  • Monolithic Picatinny top rail

  • Precision machined from 6061-T6 aluminum

  • Skeletonized cuts to reduce weight

  • M-LOK slots on bottom, left, and right sides

  • Integrated rear QD sling sockets (left & right)

  • Tight receiver fit for improved alignment and rigidity

  • Proprietary barrel nut included

  • Heavy-duty construction without unnecessary mass


Available Length Variants

  • 4"

  • 5"

  • 6"

  • 6.75"

  • 7"

  • 9"

  • 10"

  • 12"

  • 15"

  • 16.5"


Available Color Options

  • Black

  • Flat Dark Earth

  • Olive Drab

  • Gold

  • Red

  • Blue

  • Purple

  • Silver

  • Orange

  • Grey

  • Bronze

  • Pink


Specifications (Series Overview)

  • Material: Aluminum

  • Material Grade: 6061-T6

  • Finish: Anodized

  • Mounting System: M-LOK

  • Top Rail: Monolithic Picatinny

  • Internal Diameter: 1.32"

  • Caliber Compatibility:

    • 5.56

    • 9mm


Estimated Weights by Length (Including Barrel Nut)

Weights scale proportionally from manufacturer data and internal dimensions.

  • 4" – ~6.2 oz

  • 5" – ~7.1 oz

  • 6" – ~8.0 oz

  • 6.75" – ~8.6 oz

  • 7" – ~9.0 oz

  • 9" – ~10.4 oz

  • 10" – ~11.3 oz

  • 12" – ~12.6 oz

  • 15" – ~13.2 oz

  • 16.5" – ~14.1 oz

(Weights may vary slightly by anodized color and production batch.)


Why Choose the Air-LOK Series?

The Air-LOK system is ideal for builders who want:

  • A true free-float handguard

  • Superior lock-up without timing issues

  • Lightweight performance with structural integrity

  • Clean monolithic rail alignment for optics and lasers

  • A wide range of lengths and color customization

It delivers the rigidity of heavier rails while maintaining the handling characteristics of a lightweight build.

Specifications

  • Material
    Aluminum
  • Platform Compatibility
    Mil-Spec AR
  • Mounting Interface
    M-LOK, Picatinny / 1913
  • Weight
    6.2 oz

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