100% Risk Free, Lifetime Warranty
Our 15 inch Keymod, free float, quad rail handguard installs on standard mid length AR-15 rifles and the universal Keymod rail platform accepts all standard Keymod accessories. The free float handguard attaches directly to the receiver, without touching the barrel or impacting barrel harmonics, thus allowing for more precise shooting. Available in black, flat dark earth, and olive drab green.
Note that the aluminum barrel nut is significantly lighter than steel barrel nuts, however it may be subject to damage during installation. We recommend using no more than 35 pounds of torque during installation.
Please note that installation of a free float handguard requires additional gunsmithing tools and expertise. For questions regarding fitment or installation, please refer to our AR-15 quad rail guides and installation guides.
- Includes: Keymod, free float, quad rail handguard, aluminum barrel nut, castle nut, anti-rotation set screw, Allen wrench, and two 5.3 Inch/13 Slot Keymod Picatinny Rails.
- Materials: 6061 Aluminum Alloy
- Compatibility: Not Compatible with Bushmaster Carbon 15 rifles serial number E18000+ unless Bushmaster barrel nut is used.
- Weight: 15 oz
- Length: 15 in
- Height: 2.5 in
- Internal Diameter: 1.75 in
- Color: Olive Drab Green Anodized
- Warranty: Lifetime
All orders are shipped from our Warehouse in Orange County, CA via the United States Postal Service. Depending on your distance from California, your package delivery date can vary. Standard Shipping will arrive in 3-10 business days. Expedited shipping will arrive in 1-3 business days. Our shipping rates are:
- For orders between 0–$49.99: Standard - $3.99 | Expedited - $7.99
- For orders between $50–$149.99: Standard - FREE | Expedited - $7.99
- For orders $149.99 and up: Standard - FREE | Expedited - $14.99
Next Day Air Shipping is not available. We are not responsible for delays caused by USPS & UPS or for abnormal weather. Shipping fees are non-refundable. Orders placed before 10am PST, Monday-Friday will be shipped same day. Orders placed after 10am or on the weekends/holidays will be shipped on the next general workday.
The Monstrum Tactical 30 Day Satisfaction Guarantee:
Monstrum Tactical stands behind each of our products with a 30-day no questions asked return policy. Return items must be returned in unused condition with all original parts and packaging. The customer is responsible for shipping. For fast and accurate return processing, follow start here: Returns/Warranty Page