Davidson Defense AR-15 4″ M-LOK Free Float Handguard – Full Top Rail, Slim-Line (Black) 7.5 oz

The Davidson Defense AR-15 4-inch M-LOK Free Float Handguard is purpose-built for ultra-compact AR builds where weight savings, control, and modularity matter most. Designed for the AR-15 platform, this slim-line handguard delivers a rigid free-float design in a short 4″ length, making it ideal for pistols, PDW-style builds, and minimalist configurations.

Constructed from lightweight yet durable aluminum and finished in a corrosion-resistant black anodizing, this handguard provides excellent heat dissipation while keeping overall weight to a minimum. The full-length top Picatinny rail allows for secure mounting of optics, backup sights, or accessories, while the M-LOK slots offer flexible attachment points for lights, hand stops, or other low-profile accessories.

Its free-float design minimizes contact with the barrel, helping reduce barrel harmonics and promote consistent accuracy. The slim-line profile ensures comfortable handling without unnecessary bulk, making this handguard a strong choice for builders who value compact efficiency without sacrificing mounting capability.

✅ Key Features & Benefits

• Ultra-compact 4″ length for AR pistols and PDW builds

• Free-float design helps reduce barrel harmonics

• Full top Picatinny rail for optics and accessories

• M-LOK compatible slots for modular attachment

• Slim-line profile for improved handling

• Lightweight aluminum construction

• Durable black anodized finish

• Includes proprietary barrel nut

⚙️ Specifications

• Brand: Davidson Defense

• Platform: AR-15

• Length: 4 inches

• Color: Black

• Material: Aluminum

• Mounting Style: M-LOK

• Top Rail: Full-length Picatinny

• Profile: Slim-Line

• Free Float: Yes

• Included: Handguard, Barrel Nut

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.